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Route overview: Seattle to Denver (DEN) flight deals

Seattle (SEA) to Denver (DEN), Nov 7–12, 2026: from $160 round trip

Seattle (SEA) to Denver (DEN), Nov 7–12, 2026: from $160 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $160 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 7–12, 2026, 1 adult, economy, checked Oct 29, 2026.

SEA → DEN1 adulteconomyRound trip

14 flight options · 6 airlines

Nonstop flights

Sat, Nov 7 – Thu, Nov 12

Southwest Airlines
1:55 pmSEA
2h 35m
Nonstop
5:30 pmDEN
Southwest Airlines
8:40 pmDEN
3h 10m
Nonstop
10:50 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Alaska Airlines
5:17 pmSEA
2h 40m
Nonstop
8:57 pmDEN
Alaska Airlines
7:00 amDEN
3h 13m
Nonstop
9:13 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Delta Air Lines
7:59 pmSEA
2h 48m
Nonstop
11:47 pmDEN
Delta Air Lines
6:00 amDEN
3h 12m
Nonstop
8:12 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

United Airlines
12:50 pmSEA
2h 37m
Nonstop
4:27 pmDEN
United Airlines
4:10 pmDEN
3h 2m
Nonstop
6:12 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Southwest Airlines
6:10 amSEA
2h 35m
Nonstop
9:45 amDEN
Southwest Airlines
8:40 pmDEN
3h 10m
Nonstop
10:50 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Alaska Airlines
8:16 pmSEA
2h 43m
Nonstop
11:59 pmDEN
Alaska Airlines
7:00 amDEN
3h 13m
Nonstop
9:13 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Delta Air Lines
9:13 amSEA
2h 51m
Nonstop
1:04 pmDEN
Delta Air Lines
6:00 amDEN
3h 12m
Nonstop
8:12 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

United Airlines
5:00 amSEA
2h 41m
Nonstop
8:41 amDEN
United Airlines
4:10 pmDEN
3h 2m
Nonstop
6:12 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sat, Nov 7 – Thu, Nov 12

Frontier Airlines
4:27 pmSEA
2h 48m
Nonstop
8:15 pmDEN
Frontier Airlines
6:25 amDEN
7h 2m
LAS · 1h 52m
12:27 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Air Canada
10:10 amSEA
5h 17m
YVR · 1h 15m
4:27 pmDEN
Air Canada
8:15 amDEN
7h 17m
YVR · 3h 5m
2:32 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Southwest Airlines
5:15 amSEA
6h 15m
SMF · 2h 10m
12:30 pmDEN
Southwest Airlines
8:40 pmDEN
3h 10m
Nonstop
10:50 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Alaska Airlines
7:38 amSEA
5h 46m
PDX · 2h 9m
2:24 pmDEN
Alaska Airlines
7:00 amDEN
3h 13m
Nonstop
9:13 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

Delta Air Lines
1:25 pmSEA
6h 7m
SLC · 2h 33m
8:32 pmDEN
Delta Air Lines
6:00 amDEN
3h 12m
Nonstop
8:12 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sat, Nov 7 – Thu, Nov 12

United Airlines
1:02 pmSEA
2h 43m
Nonstop
4:45 pmDEN
United Airlines
3:53 pmDEN
7h 4m
YVR · 2h 46m
9:57 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Nov 7–12, 2026 · 5 nights · 2 adults, 1 room): 3★ Residence Inn Denver Cherry Creek · 4★ Limelight Hotel Denver · 5★ Four Seasons Denver Hotel

Make this trip yours

SEA ⇄ DEN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeNov 8, 2026 · Return optionsHotels in Denver with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to Denver (DEN), Nov 7–12, 2026: from $160 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $160 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Nov 7–12, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-07 → 2026-11-12Southwest AirlinesWN3823 / WN314113:55:00→17:30:00 2h 35m nonstop · 20:40:00→22:50:00 3h 10m nonstopAxel-exclusive $245.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Alaska AirlinesAS310 / AS31717:17:00→20:57:00 2h 40m nonstop · 07:00:00→09:13:00 3h 13m nonstopAxel-exclusive $250.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Delta Air LinesDL2851 / DL173119:59:00→23:47:00 2h 48m nonstop · 06:00:00→08:12:00 3h 12m nonstopAxel-exclusive $260.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12United AirlinesUA1411 / UA201312:50:00→16:27:00 2h 37m nonstop · 16:10:00→18:12:00 3h 02m nonstopAxel-exclusive $270.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Frontier AirlinesF93406 / F92015 + F9240716:27:00→20:15:00 2h 48m nonstop · 06:25:00→12:27:00 7h 02m 1 stop via LASAxel-exclusive $160.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Air CanadaAC8803 + UA2470 / AC575 + AC880410:10:00→16:27:00 5h 17m 1 stop via YVR · 08:15:00→14:32:00 7h 17m 1 stop via YVRAxel-exclusive $385.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Southwest AirlinesWN4956 / WN314106:10:00→09:45:00 2h 35m nonstop · 20:40:00→22:50:00 3h 10m nonstopAxel-exclusive $245.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Alaska AirlinesAS440 / AS31720:16:00→23:59:00 2h 43m nonstop · 07:00:00→09:13:00 3h 13m nonstopAxel-exclusive $250.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Delta Air LinesDL1358 / DL173109:13:00→13:04:00 2h 51m nonstop · 06:00:00→08:12:00 3h 12m nonstopAxel-exclusive $260.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12United AirlinesUA2601 / UA201305:00:00→08:41:00 2h 41m nonstop · 16:10:00→18:12:00 3h 02m nonstopAxel-exclusive $270.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Southwest AirlinesWN3833 + WN2542 / WN314105:15:00→12:30:00 6h 15m 1 stop via SMF · 20:40:00→22:50:00 3h 10m nonstopAxel-exclusive $260.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Alaska AirlinesAS2238 + AS684 / AS31707:38:00→14:24:00 5h 46m 1 stop via PDX · 07:00:00→09:13:00 3h 13m nonstopAxel-exclusive $270.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12Delta Air LinesDL1120 + DL1586 / DL173113:25:00→20:32:00 6h 07m 1 stop via SLC · 06:00:00→08:12:00 3h 12m nonstopAxel-exclusive $280.002026-10-29T01:14:56Z
2026-11-07 → 2026-11-12United AirlinesUA1411 / UA1086 + AC881013:02:00→16:45:00 2h 43m nonstop · 15:53:00→21:57:00 7h 04m 1 stop via YVRAxel-exclusive $290.002026-10-29T01:14:56Z

Hotels in Denver for these trips

Hotels: under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Denver

Route overview: Seattle to Denver (DEN) flight deals

2026-11-07 → 2026-11-12 · Axel-exclusive $245.00

  • Southwest Airlines WN3823: SEA 2026-11-07 13:55:00 → DEN 2026-11-07 17:30:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3141: DEN 2026-11-12 20:40:00 → SEA 2026-11-12 22:50:00; nonstop; 190 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $250.00

  • Alaska Airlines AS310: SEA 2026-11-07 17:17:00 → DEN 2026-11-07 20:57:00; nonstop; 160 minutes. Local airport times.
  • Alaska Airlines AS317: DEN 2026-11-12 07:00:00 → SEA 2026-11-12 09:13:00; nonstop; 193 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $260.00

  • Delta Air Lines DL2851: SEA 2026-11-07 19:59:00 → DEN 2026-11-07 23:47:00; nonstop; 168 minutes. Local airport times.
  • Delta Air Lines DL1731: DEN 2026-11-12 06:00:00 → SEA 2026-11-12 08:12:00; nonstop; 192 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $270.00

  • United Airlines UA1411: SEA 2026-11-07 12:50:00 → DEN 2026-11-07 16:27:00; nonstop; 157 minutes. Local airport times.
  • United Airlines UA2013: DEN 2026-11-12 16:10:00 → SEA 2026-11-12 18:12:00; nonstop; 182 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $160.00

  • Frontier Airlines F93406: SEA 2026-11-07 16:27:00 → DEN 2026-11-07 20:15:00; nonstop; 168 minutes. Local airport times.
  • Frontier Airlines F92015 / F92407: DEN 2026-11-12 06:25:00 → SEA 2026-11-12 12:27:00; 1 stop(s) via LAS; 422 minutes. Local airport times.
    • F92015: DEN 2026-11-12 06:25:00 → LAS 2026-11-12 07:37:00; layover at LAS: 112 minutes.
    • F92407: LAS 2026-11-12 09:29:00 → SEA 2026-11-12 12:27:00.

2026-11-07 → 2026-11-12 · Axel-exclusive $385.00

  • Air Canada AC8803 / UA2470: SEA 2026-11-07 10:10:00 → DEN 2026-11-07 16:27:00; 1 stop(s) via YVR; 317 minutes. Local airport times.
    • AC8803: SEA 2026-11-07 10:10:00 → YVR 2026-11-07 12:21:00; layover at YVR: 75 minutes.
    • UA2470: YVR 2026-11-07 13:36:00 → DEN 2026-11-07 16:27:00.
  • Air Canada AC575 / AC8804: DEN 2026-11-12 08:15:00 → SEA 2026-11-12 14:32:00; 1 stop(s) via YVR; 437 minutes. Local airport times.
    • AC575: DEN 2026-11-12 08:15:00 → YVR 2026-11-12 11:25:00; layover at YVR: 185 minutes.
    • AC8804: YVR 2026-11-12 14:30:00 → SEA 2026-11-12 14:32:00.

2026-11-07 → 2026-11-12 · Axel-exclusive $245.00

  • Southwest Airlines WN4956: SEA 2026-11-07 06:10:00 → DEN 2026-11-07 09:45:00; nonstop; 155 minutes. Local airport times.
  • Southwest Airlines WN3141: DEN 2026-11-12 20:40:00 → SEA 2026-11-12 22:50:00; nonstop; 190 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $250.00

  • Alaska Airlines AS440: SEA 2026-11-07 20:16:00 → DEN 2026-11-07 23:59:00; nonstop; 163 minutes. Local airport times.
  • Alaska Airlines AS317: DEN 2026-11-12 07:00:00 → SEA 2026-11-12 09:13:00; nonstop; 193 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $260.00

  • Delta Air Lines DL1358: SEA 2026-11-07 09:13:00 → DEN 2026-11-07 13:04:00; nonstop; 171 minutes. Local airport times.
  • Delta Air Lines DL1731: DEN 2026-11-12 06:00:00 → SEA 2026-11-12 08:12:00; nonstop; 192 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $270.00

  • United Airlines UA2601: SEA 2026-11-07 05:00:00 → DEN 2026-11-07 08:41:00; nonstop; 161 minutes. Local airport times.
  • United Airlines UA2013: DEN 2026-11-12 16:10:00 → SEA 2026-11-12 18:12:00; nonstop; 182 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $260.00

  • Southwest Airlines WN3833 / WN2542: SEA 2026-11-07 05:15:00 → DEN 2026-11-07 12:30:00; 1 stop(s) via SMF; 375 minutes. Local airport times.
    • WN3833: SEA 2026-11-07 05:15:00 → SMF 2026-11-07 07:05:00; layover at SMF: 130 minutes.
    • WN2542: SMF 2026-11-07 09:15:00 → DEN 2026-11-07 12:30:00.
  • Southwest Airlines WN3141: DEN 2026-11-12 20:40:00 → SEA 2026-11-12 22:50:00; nonstop; 190 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $270.00

  • Alaska Airlines AS2238 / AS684: SEA 2026-11-07 07:38:00 → DEN 2026-11-07 14:24:00; 1 stop(s) via PDX; 346 minutes. Local airport times.
    • AS2238: SEA 2026-11-07 07:38:00 → PDX 2026-11-07 08:35:00; layover at PDX: 129 minutes.
    • AS684: PDX 2026-11-07 10:44:00 → DEN 2026-11-07 14:24:00.
  • Alaska Airlines AS317: DEN 2026-11-12 07:00:00 → SEA 2026-11-12 09:13:00; nonstop; 193 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $280.00

  • Delta Air Lines DL1120 / DL1586: SEA 2026-11-07 13:25:00 → DEN 2026-11-07 20:32:00; 1 stop(s) via SLC; 367 minutes. Local airport times.
    • DL1120: SEA 2026-11-07 13:25:00 → SLC 2026-11-07 16:26:00; layover at SLC: 153 minutes.
    • DL1586: SLC 2026-11-07 18:59:00 → DEN 2026-11-07 20:32:00.
  • Delta Air Lines DL1731: DEN 2026-11-12 06:00:00 → SEA 2026-11-12 08:12:00; nonstop; 192 minutes. Local airport times.

2026-11-07 → 2026-11-12 · Axel-exclusive $290.00

  • United Airlines UA1411: SEA 2026-11-07 13:02:00 → DEN 2026-11-07 16:45:00; nonstop; 163 minutes. Local airport times.
  • United Airlines UA1086 / AC8810: DEN 2026-11-12 15:53:00 → SEA 2026-11-12 21:57:00; 1 stop(s) via YVR; 424 minutes. Local airport times.
    • UA1086: DEN 2026-11-12 15:53:00 → YVR 2026-11-12 19:04:00; layover at YVR: 166 minutes.
    • AC8810: YVR 2026-11-12 21:50:00 → SEA 2026-11-12 21:57:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Seattle (SEA) to Denver (DEN) · Nov 7, 2026 · return Nov 12, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Denver for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own 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 Seattle to Denver (DEN) flight deals · Flight search guide.
  • 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.