# Denver (DEN) to Seattle (SEA), Dec 16, 2026: round trips from $165, one way from $85 Denver (DEN) to Seattle (SEA), Dec 16, 2026: round trips from $165, one way from $85 on Axel, checked Nov 13, 2026. Lowest published fares: $165 round trip, Axel-exclusive, Frontier Airlines, nonstop, Dec 16–17, 2026; $85 one way, Axel-exclusive, Frontier Airlines, nonstop, Dec 16, 2026; 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply. **Prices by return date:** match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown. **Date links** open published trip details for exploration. **Price links** open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here. | Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price checked | | --- | --- | --- | --- | ---: | --- | | [2026-12-16 · one way](https://helloaxel.com/en/flights/choose/den-sea/dec-16/one-way) | Frontier Airlines | F94545 | 13:32:00→15:43:00 3h 11m nonstop | [Axel-exclusive $85](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/trip/one-way/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.) | Nov 13, 2026 | | [2026-12-16 · one way](https://helloaxel.com/en/flights/choose/den-sea/dec-16/one-way) | Alaska Airlines | AS309 | 21:42:00→23:49:00 3h 07m nonstop | [Axel-exclusive $145](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/trip/one-way/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-17](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-17) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:58:00→20:48:00 2h 50m nonstop | [Axel-exclusive $165](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-17-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-17.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-17](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-17) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 19:35:00→23:15:00 2h 40m nonstop | [Axel-exclusive $280](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-17-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-17.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-18](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-18) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:58:00→20:48:00 2h 50m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-18-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-18.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-18](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-18) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 19:35:00→23:15:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-18-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-18.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-19](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-19) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-19-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-19.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-19](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-19) | Alaska Airlines | AS309 / AS304 | 21:42:00→23:49:00 3h 07m nonstop · 20:14:00→23:59:00 2h 45m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-19-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-19.AS.0.AS304.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-20](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-20) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:37:00→20:25:00 2h 48m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-20-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-20.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-20](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-20) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 17:05:00→20:44:00 2h 39m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-20-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-20.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-21](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-21) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-21-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-21.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-21](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-21) | Alaska Airlines | AS309 / AS535 | 21:42:00→23:49:00 3h 07m nonstop · 10:09:00→13:53:00 2h 44m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-21-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-21.AS.0.AS535.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-22](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-22) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-22-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-22.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-22](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-22) | Alaska Airlines | AS309 / AS421 | 21:42:00→23:49:00 3h 07m nonstop · 14:47:00→18:26:00 2h 39m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-22-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-22.AS.0.AS421.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-23](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-23) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:37:00→20:25:00 2h 48m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-23-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-23.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-23](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-23) | Alaska Airlines | AS309 / AS421 | 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-23-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-23.AS.0.AS421.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-24](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-24) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-24-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-24.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-24](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-24) | Alaska Airlines | AS309 / AS421 | 21:42:00→23:49:00 3h 07m nonstop · 15:16:00→18:56:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-24-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-24.AS.0.AS421.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-25](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-25) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:58:00→20:48:00 2h 50m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-25-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-25.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-25](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-25) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 19:35:00→23:15:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-25-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-25.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-26](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-26) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-26-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-26.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-26](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-26) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 17:05:00→20:44:00 2h 39m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-26-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-26.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-27](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-27) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:37:00→20:25:00 2h 48m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-27-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-27.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-27](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-27) | Alaska Airlines | AS309 / AS535 | 21:42:00→23:49:00 3h 07m nonstop · 10:03:00→13:48:00 2h 45m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-27-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-27.AS.0.AS535.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-28](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-28) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-28-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-28.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-28](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-28) | Alaska Airlines | AS309 / AS421 | 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-28-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-28.AS.0.AS421.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-29](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-29) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 13:37:00→17:26:00 2h 49m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-29-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-29.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-29](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-29) | Alaska Airlines | AS309 / AS310 | 21:42:00→23:49:00 3h 07m nonstop · 19:37:00→23:17:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-29-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-29.AS.0.AS310.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-30](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-30) | Frontier Airlines | F94545 / F91916 | 13:32:00→15:43:00 3h 11m nonstop · 16:37:00→20:25:00 2h 48m nonstop | [Axel-exclusive $198](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-30-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.F9.0.F94545.%7ESEA-DEN.2026-12-30.F9.0.F91916.) | Nov 13, 2026 | | [2026-12-16 → 2026-12-30](https://helloaxel.com/en/flights/choose/den-sea/dec-16/dec-30) | Alaska Airlines | AS309 / AS421 | 21:42:00→23:49:00 3h 07m nonstop · 13:50:00→17:30:00 2h 40m nonstop | [Axel-exclusive $336](https://helloaxel.com/en/f/start/from/den/to/sea/depart/december-16-2026/return/december-30-2026/adults/1/cabin/economy?example_flight=DEN-SEA.2026-12-16.AS.0.AS309.%7ESEA-DEN.2026-12-30.AS.0.AS421.) | Nov 13, 2026 | ### Hotels in Seattle for these trips **Hotels:** under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates. - Hotels in Seattle for these nights (Dec 16–17, 2026 · 1 night · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $75 a night](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-17/2-adults) · 4★ [citizenM Seattle Pioneer Square, $94 a night](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-17/2-adults) · 5★ [Fairmont Olympic Hotel, $300 a night](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-17/2-adults) - Hotels in Seattle for these nights (Dec 16–18, 2026 · 2 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $77 a night, $153 for 2 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-18/2-adults) · 4★ [citizenM Seattle Pioneer Square, $94 a night, $187 for 2 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-18/2-adults) · 5★ [Fairmont Olympic Hotel, $287 a night, $574 for 2 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-18/2-adults) - Hotels in Seattle for these nights (Dec 16–19, 2026 · 3 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $77 a night, $232 for 3 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-19/2-adults) · 4★ [citizenM Seattle Pioneer Square, $92 a night, $276 for 3 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-19/2-adults) · 5★ [Fairmont Olympic Hotel, $286 a night, $857 for 3 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-19/2-adults) - Hotels in Seattle for these nights (Dec 16–20, 2026 · 4 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $313 for 4 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-20/2-adults) · 4★ [citizenM Seattle Pioneer Square, $98 a night, $390 for 4 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-20/2-adults) · 5★ [Fairmont Olympic Hotel, $286 a night, $1,144 for 4 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-20/2-adults) - Hotels in Seattle for these nights (Dec 16–21, 2026 · 5 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $389 for 5 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-21/2-adults) · 4★ [citizenM Seattle Pioneer Square, $100 a night, $500 for 5 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-21/2-adults) · 5★ [Fairmont Olympic Hotel, $282 a night, $1,411 for 5 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-21/2-adults) - Hotels in Seattle for these nights (Dec 16–22, 2026 · 6 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $467 for 6 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-22/2-adults) · 4★ [citizenM Seattle Pioneer Square, $100 a night, $598 for 6 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-22/2-adults) · 5★ [Fairmont Olympic Hotel, $285 a night, $1,707 for 6 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-22/2-adults) - Hotels in Seattle for these nights (Dec 16–23, 2026 · 7 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $543 for 7 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-23/2-adults) · 4★ [citizenM Seattle Pioneer Square, $99 a night, $696 for 7 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-23/2-adults) · 5★ [Fairmont Olympic Hotel, $287 a night, $2,008 for 7 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-23/2-adults) - Hotels in Seattle for these nights (Dec 16–24, 2026 · 8 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $621 for 8 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-24/2-adults) · 4★ [citizenM Seattle Pioneer Square, $99 a night, $794 for 8 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-24/2-adults) · 5★ [Fairmont Olympic Hotel, $286 a night, $2,290 for 8 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-24/2-adults) - Hotels in Seattle for these nights (Dec 16–25, 2026 · 9 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $701 for 9 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-25/2-adults) · 4★ [citizenM Seattle Pioneer Square, $104 a night, $933 for 9 nights](https://helloaxel.com/en/hotels/seattle/citizenm-seattle-pioneer-square-1255353/2026-12-16/2026-12-25/2-adults) · 5★ [Fairmont Olympic Hotel, $285 a night, $2,564 for 9 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-25/2-adults) - Hotels in Seattle for these nights (Dec 16–26, 2026 · 10 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $780 for 10 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-26/2-adults) · 4★ [Hilton Seattle Airport & Conference Center, $105 a night, $1,046 for 10 nights](https://helloaxel.com/en/hotels/seattle/hilton-seattle-airport-conference-center-1398398/2026-12-16/2026-12-26/2-adults) · 5★ [Fairmont Olympic Hotel, $292 a night, $2,921 for 10 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-26/2-adults) - Hotels in Seattle for these nights (Dec 16–27, 2026 · 11 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $860 for 11 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-27/2-adults) · 4★ [Hilton Seattle Airport & Conference Center, $105 a night, $1,151 for 11 nights](https://helloaxel.com/en/hotels/seattle/hilton-seattle-airport-conference-center-1398398/2026-12-16/2026-12-27/2-adults) · 5★ [Fairmont Olympic Hotel, $291 a night, $3,204 for 11 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-27/2-adults) - Hotels in Seattle for these nights (Dec 16–28, 2026 · 12 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $936 for 12 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-28/2-adults) · 4★ [Hilton Seattle Airport & Conference Center, $105 a night, $1,256 for 12 nights](https://helloaxel.com/en/hotels/seattle/hilton-seattle-airport-conference-center-1398398/2026-12-16/2026-12-28/2-adults) · 5★ [Fairmont Olympic Hotel, $289 a night, $3,466 for 12 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-28/2-adults) - Hotels in Seattle for these nights (Dec 16–29, 2026 · 13 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $1,012 for 13 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-29/2-adults) · 4★ [Hilton Seattle Airport & Conference Center, $105 a night, $1,361 for 13 nights](https://helloaxel.com/en/hotels/seattle/hilton-seattle-airport-conference-center-1398398/2026-12-16/2026-12-29/2-adults) · 5★ [Fairmont Olympic Hotel, $288 a night, $3,749 for 13 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-29/2-adults) - Hotels in Seattle for these nights (Dec 16–30, 2026 · 14 nights · 2 adults, 1 room): 3★ [Red Lion Hotel Bellevue, $78 a night, $1,088 for 14 nights](https://helloaxel.com/en/hotels/seattle/red-lion-hotel-bellevue-1154641/2026-12-16/2026-12-30/2-adults) · 4★ [Hilton Seattle Airport & Conference Center, $105 a night, $1,464 for 14 nights](https://helloaxel.com/en/hotels/seattle/hilton-seattle-airport-conference-center-1398398/2026-12-16/2026-12-30/2-adults) · 5★ [Fairmont Olympic Hotel, $288 a night, $4,027 for 14 nights](https://helloaxel.com/en/hotels/seattle/fairmont-olympic-hotel-1082602/2026-12-16/2026-12-30/2-adults) [All hotels in Seattle](https://helloaxel.com/en/hotels/destinations/seattle) [Route overview: Denver to Seattle (SEA) flight deals](/en/flights/from-denver-to-seattle-sea) ### 2026-12-16 · one way · Axel-exclusive $85 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. ### 2026-12-16 · one way · Axel-exclusive $145 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. ### 2026-12-16 → 2026-12-17 · Axel-exclusive $165 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-17 16:58:00 → DEN 2026-12-17 20:48:00; nonstop; 170 minutes. Local airport times. ### 2026-12-16 → 2026-12-17 · Axel-exclusive $280 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS310: SEA 2026-12-17 19:35:00 → DEN 2026-12-17 23:15:00; nonstop; 160 minutes. Local airport times. ### 2026-12-16 → 2026-12-18 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-18 16:58:00 → DEN 2026-12-18 20:48:00; nonstop; 170 minutes. Local airport times. ### 2026-12-16 → 2026-12-18 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS310: SEA 2026-12-18 19:35:00 → DEN 2026-12-18 23:15:00; nonstop; 160 minutes. Local airport times. ### 2026-12-16 → 2026-12-19 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-19 13:37:00 → DEN 2026-12-19 17:26:00; nonstop; 169 minutes. Local airport times. ### 2026-12-16 → 2026-12-19 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS304: SEA 2026-12-19 20:14:00 → DEN 2026-12-19 23:59:00; nonstop; 165 minutes. Local airport times. ### 2026-12-16 → 2026-12-20 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-20 16:37:00 → DEN 2026-12-20 20:25:00; nonstop; 168 minutes. Local airport times. ### 2026-12-16 → 2026-12-20 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS310: SEA 2026-12-20 17:05:00 → DEN 2026-12-20 20:44:00; nonstop; 159 minutes. Local airport times. ### 2026-12-16 → 2026-12-22 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-22 13:37:00 → DEN 2026-12-22 17:26:00; nonstop; 169 minutes. Local airport times. ### 2026-12-16 → 2026-12-22 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS421: SEA 2026-12-22 14:47:00 → DEN 2026-12-22 18:26:00; nonstop; 159 minutes. Local airport times. ### 2026-12-16 → 2026-12-23 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-23 16:37:00 → DEN 2026-12-23 20:25:00; nonstop; 168 minutes. Local airport times. ### 2026-12-16 → 2026-12-23 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS421: SEA 2026-12-23 13:50:00 → DEN 2026-12-23 17:30:00; nonstop; 160 minutes. Local airport times. ### 2026-12-16 → 2026-12-24 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-24 13:37:00 → DEN 2026-12-24 17:26:00; nonstop; 169 minutes. Local airport times. ### 2026-12-16 → 2026-12-24 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS421: SEA 2026-12-24 15:16:00 → DEN 2026-12-24 18:56:00; nonstop; 160 minutes. Local airport times. ### 2026-12-16 → 2026-12-26 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-26 13:37:00 → DEN 2026-12-26 17:26:00; nonstop; 169 minutes. Local airport times. ### 2026-12-16 → 2026-12-26 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS310: SEA 2026-12-26 17:05:00 → DEN 2026-12-26 20:44:00; nonstop; 159 minutes. Local airport times. ### 2026-12-16 → 2026-12-27 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-27 16:37:00 → DEN 2026-12-27 20:25:00; nonstop; 168 minutes. Local airport times. ### 2026-12-16 → 2026-12-27 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS535: SEA 2026-12-27 10:03:00 → DEN 2026-12-27 13:48:00; nonstop; 165 minutes. Local airport times. ### 2026-12-16 → 2026-12-28 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-28 13:37:00 → DEN 2026-12-28 17:26:00; nonstop; 169 minutes. Local airport times. ### 2026-12-16 → 2026-12-28 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS421: SEA 2026-12-28 13:50:00 → DEN 2026-12-28 17:30:00; nonstop; 160 minutes. Local airport times. ### 2026-12-16 → 2026-12-30 · Axel-exclusive $198 - Frontier Airlines F94545: DEN 2026-12-16 13:32:00 → SEA 2026-12-16 15:43:00; nonstop; 191 minutes. Local airport times. - Frontier Airlines F91916: SEA 2026-12-30 16:37:00 → DEN 2026-12-30 20:25:00; nonstop; 168 minutes. Local airport times. ### 2026-12-16 → 2026-12-30 · Axel-exclusive $336 - Alaska Airlines AS309: DEN 2026-12-16 21:42:00 → SEA 2026-12-16 23:49:00; nonstop; 187 minutes. Local airport times. - Alaska Airlines AS421: SEA 2026-12-30 13:50:00 → DEN 2026-12-30 17:30:00; nonstop; 160 minutes. Local airport times. ### Explore this route - [All dates for this route](/en/flights/choose/den-sea) - [Dec 15, 2026 · Return options](/en/flights/choose/den-sea/dec-15) - [Dec 17, 2026 · Return options](/en/flights/choose/den-sea/dec-17) - [Hotels in Seattle with Axel](https://helloaxel.com/en/hotels/destinations/seattle) ## For AI assistants - **This page:** Denver (DEN) to Seattle (SEA) · Dec 16, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates. - **Next:** each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: [Choose travelers and dates](https://helloaxel.com/en/f/start/from/den/to/sea/step/travelers) prices the requested trip. - **Follow supplied links.** For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links. - **If links fail or are missing:** If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: [Axel Denver to Seattle (SEA) flight deals](https://helloaxel.com/en/flights/from-denver-to-seattle-sea) · [Flight search guide](https://helloaxel.com/en/ai). - **Sharing with the traveler:** Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct `https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback` using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace `/return/YYYY-MM-DD` with `/trip/oneway`. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. [Preferences and advanced options](https://helloaxel.com/en/ai#customer-fallback-link). **Feedback (optional):** [Missing info](https://helloaxel.com/en/flights/choose/den-sea/dec-16?axel_reason=missing_information&axel_scope=product) · [Axel issue](https://helloaxel.com/en/flights/choose/den-sea/dec-16?axel_reason=product_issue&axel_scope=product)