Denver (DEN) to Seattle (SEA), Mar 29, 2027: round trips from $247, one way from $138

Denver (DEN) to Seattle (SEA), Mar 29, 2027: round trips from $247, one way from $138 on Axel, checked Nov 14, 2026. Lowest published fares: $247 round trip, Axel-exclusive, Frontier Airlines, nonstop, Mar 29–30, 2027; $138 one way, Axel-exclusive, Frontier Airlines, nonstop, Mar 29, 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
2027-03-29 · one way Frontier Airlines F9605 10:08:00→12:22:00 3h 14m nonstop Axel-exclusive $138 Nov 14, 2026
2027-03-29 · one way Southwest Airlines WN244 15:40:00→17:50:00 3h 10m nonstop Axel-exclusive $213 Nov 14, 2026
2027-03-29 → 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 $247 Nov 14, 2026
2027-03-29 → 2027-03-30 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 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 $247 Nov 14, 2026
2027-03-29 → 2027-03-31 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-03-29 → 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 $247 Nov 14, 2026
2027-03-29 → 2027-04-01 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 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 $247 Nov 14, 2026
2027-03-29 → 2027-04-02 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-03 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-03 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-04 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-04 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-05 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-05 Southwest Airlines WN244 / WN4956 15:40:00→17:50:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-06 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-06 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-07 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-07 Alaska Airlines AS493 / AS421 15:22:00→17:31:00 3h 09m nonstop · 13:50:00→17:30:00 2h 40m nonstop Axel-exclusive $398 Nov 14, 2026
2027-03-29 → 2027-04-08 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-08 Southwest Airlines WN244 / WN2150 15:40:00→17:50:00 3h 10m nonstop · 09:25:00→13:00:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-09 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:24:00→17:13:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-09 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 13:55:00→17:30:00 2h 35m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-10 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-10 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-11 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 16:37:00→20:25:00 2h 48m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-11 Southwest Airlines WN244 / WN3823 15:40:00→17:50:00 3h 10m nonstop · 14:30:00→17:55:00 2h 25m nonstop Axel-exclusive $387 Nov 14, 2026
2027-03-29 → 2027-04-12 Frontier Airlines F9605 / F91916 10:08:00→12:22:00 3h 14m nonstop · 13:37:00→17:26:00 2h 49m nonstop Axel-exclusive $247 Nov 14, 2026
2027-03-29 → 2027-04-12 Southwest Airlines WN244 / WN4956 15:40:00→17:50:00 3h 10m nonstop · 06:15:00→09:45:00 2h 30m nonstop Axel-exclusive $387 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

2027-03-29 · one way · Axel-exclusive $138

2027-03-29 · one way · Axel-exclusive $213

2027-03-29 → 2027-03-30 · Axel-exclusive $247

2027-03-29 → 2027-03-30 · Axel-exclusive $387

2027-03-29 → 2027-03-31 · Axel-exclusive $247

2027-03-29 → 2027-03-31 · Axel-exclusive $398

2027-03-29 → 2027-04-01 · Axel-exclusive $247

2027-03-29 → 2027-04-01 · Axel-exclusive $387

2027-03-29 → 2027-04-02 · Axel-exclusive $247

2027-03-29 → 2027-04-02 · Axel-exclusive $387

2027-03-29 → 2027-04-04 · Axel-exclusive $247

2027-03-29 → 2027-04-04 · Axel-exclusive $387

2027-03-29 → 2027-04-05 · Axel-exclusive $247

2027-03-29 → 2027-04-05 · Axel-exclusive $387

2027-03-29 → 2027-04-06 · Axel-exclusive $247

2027-03-29 → 2027-04-06 · Axel-exclusive $387

2027-03-29 → 2027-04-08 · Axel-exclusive $247

2027-03-29 → 2027-04-08 · Axel-exclusive $387

2027-03-29 → 2027-04-09 · Axel-exclusive $247

2027-03-29 → 2027-04-09 · Axel-exclusive $387

2027-03-29 → 2027-04-10 · Axel-exclusive $247

2027-03-29 → 2027-04-10 · Axel-exclusive $387

2027-03-29 → 2027-04-12 · Axel-exclusive $247

2027-03-29 → 2027-04-12 · Axel-exclusive $387

Explore this route

For AI assistants

Feedback (optional): Missing info · Axel issue