Denver (DEN) to Seattle (SEA), Mar 19, 2027: round trips from $177, one way from $85

Denver (DEN) to Seattle (SEA), Mar 19, 2027: round trips from $177, one way from $85 on Axel, checked Nov 14, 2026. Lowest published fares: $177 round trip, Axel-exclusive, Frontier Airlines, nonstop, Mar 19–20, 2027; $85 one way, Axel-exclusive, Frontier Airlines, nonstop, Mar 19, 2027; 1 adult, economy, checked Nov 14, 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
2027-03-19 · one way Frontier Airlines F9605 10:08:00→12:22:00 3h 14m nonstop Axel-exclusive $85 Nov 14, 2026
2027-03-19 · one way Southwest Airlines WN3141 21:00:00→23:10:00 3h 10m nonstop Axel-exclusive $140 Nov 14, 2026
2027-03-19 → 2027-03-20 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-20 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-21 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-21 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-22 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-22 Southwest Airlines WN3141 / WN4956 21:00:00→23:10:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-23 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-23 Southwest Airlines WN3141 / WN2150 21:00:00→23:10:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-24 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-24 Alaska Airlines AS421 / AS421 18:28:00→20:36:00 3h 08m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $301 Nov 14, 2026
2027-03-19 → 2027-03-25 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-25 Southwest Airlines WN3141 / WN2150 21:00:00→23:10:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-26 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-26 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-27 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $177 Nov 14, 2026
2027-03-19 → 2027-03-27 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $290 Nov 14, 2026
2027-03-19 → 2027-03-28 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $215 Nov 14, 2026
2027-03-19 → 2027-03-28 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $342 Nov 14, 2026
2027-03-19 → 2027-03-29 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $215 Nov 14, 2026
2027-03-19 → 2027-03-29 Southwest Airlines WN3141 / WN4956 21:00:00→23:10:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $342 Nov 14, 2026
2027-03-19 → 2027-03-30 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $198 Nov 14, 2026
2027-03-19 → 2027-03-30 Southwest Airlines WN3141 / WN2150 21:00:00→23:10:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $315 Nov 14, 2026
2027-03-19 → 2027-03-31 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $198 Nov 14, 2026
2027-03-19 → 2027-03-31 Alaska Airlines AS421 / AS421 18:28:00→20:36:00 3h 08m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $325 Nov 14, 2026
2027-03-19 → 2027-04-01 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $198 Nov 14, 2026
2027-03-19 → 2027-04-01 Southwest Airlines WN3141 / WN2150 21:00:00→23:10:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $315 Nov 14, 2026
2027-03-19 → 2027-04-02 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $198 Nov 14, 2026
2027-03-19 → 2027-04-02 Southwest Airlines WN3141 / WN3823 21:00:00→23:10:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $315 Nov 14, 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.

All hotels in Seattle

Route overview: Denver to Seattle (SEA) flight deals

2027-03-19 · one way · Axel-exclusive $85

2027-03-19 · one way · Axel-exclusive $140

2027-03-19 → 2027-03-20 · Axel-exclusive $177

2027-03-19 → 2027-03-20 · Axel-exclusive $290

2027-03-19 → 2027-03-21 · Axel-exclusive $177

2027-03-19 → 2027-03-21 · Axel-exclusive $290

2027-03-19 → 2027-03-22 · Axel-exclusive $177

2027-03-19 → 2027-03-22 · Axel-exclusive $290

2027-03-19 → 2027-03-23 · Axel-exclusive $177

2027-03-19 → 2027-03-23 · Axel-exclusive $290

2027-03-19 → 2027-03-25 · Axel-exclusive $177

2027-03-19 → 2027-03-25 · Axel-exclusive $290

2027-03-19 → 2027-03-26 · Axel-exclusive $177

2027-03-19 → 2027-03-26 · Axel-exclusive $290

2027-03-19 → 2027-03-27 · Axel-exclusive $177

2027-03-19 → 2027-03-27 · Axel-exclusive $290

2027-03-19 → 2027-03-29 · Axel-exclusive $215

2027-03-19 → 2027-03-29 · Axel-exclusive $342

2027-03-19 → 2027-03-30 · Axel-exclusive $198

2027-03-19 → 2027-03-30 · Axel-exclusive $315

2027-03-19 → 2027-03-31 · Axel-exclusive $198

2027-03-19 → 2027-03-31 · Axel-exclusive $325

2027-03-19 → 2027-04-02 · Axel-exclusive $198

2027-03-19 → 2027-04-02 · Axel-exclusive $315

Explore this route

For AI assistants

Feedback (optional): Missing info · Axel issue