Compare live prices for DEN to SEA on
Tue, 14 Apr 2026. Use the search panel
to change origin, destination, passengers, cabin and trip type instantly.
DEN → SEAApprox. 1645.07 km14 Apr 2026Live inventory
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Showing 25
of 162
live flights
Frontier Airlines
F9-4545
07:15
04/14/2026
DEN
2h 12m
Non-stop
09:27
04/14/2026
SEA
₹5,582
per person
✕ Non-refundable
Delta Air Lines
DL-2740
13:20
04/14/2026
DEN
1h 55m
Non-stop
15:15
04/14/2026
SEA
₹10,046
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-1731
06:55
04/14/2026
DEN
2h 6m
Non-stop
09:01
04/14/2026
SEA
₹10,046
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-4156
19:45
04/14/2026
DEN
2h 20m
Non-stop
22:05
04/14/2026
SEA
₹10,106
per person
✕ Non-refundable7 fare options
Hawaiian Airlines
HA-4868
07:00
04/14/2026
DEN
2h 10m
Non-stop
09:10
04/14/2026
SEA
₹10,122
per person
✕ Non-refundable5 fare options
alaskaairlines
AS-643
07:00
04/14/2026
DEN
2h 10m
Non-stop
09:10
04/14/2026
SEA
₹10,345
per person
✕ Non-refundable10 fare options
Hawaiian Airlines
HA-4820
19:24
04/14/2026
DEN
2h 9m
Non-stop
21:33
04/14/2026
SEA
₹11,948
per person
✕ Non-refundable5 fare options
alaskaairlines
AS-785
19:24
04/14/2026
DEN
2h 9m
Non-stop
21:33
04/14/2026
SEA
₹12,219
per person
✕ Non-refundable10 fare options
Southwest Airlines Dallas
WN-840
15:35
04/14/2026
DEN
7h 20m
1 Stop
⏱ SMF · 3h 45m
22:55
04/14/2026
SEA
₹12,375
per person
✕ Non-refundable🔥 Last 3 seats7 fare options
Southwest Airlines
WN-1207
11:45
04/14/2026
DEN
12h 25m
1 Stop
⏱ MDW · 5h 0m
00:10
04/15/2026
+1
SEA
₹12,459
per person
✕ Non-refundable4 fare options
Frontier Airlines
F9-94545
07:15
04/14/2026
DEN
2h 12m
Non-stop
09:27
04/14/2026
SEA
₹12,523
per person
✕ Non-refundable
Southwest Airlines
WN-1475
13:40
04/14/2026
DEN
10h 30m
1 Stop
⏱ MDW · 4h 35m
00:10
04/15/2026
+1
SEA
₹12,900
per person
✕ Non-refundable🔥 Last 3 seats5 fare options
United Airlines
UA-2367
05:15
04/14/2026
DEN
5h 24m
1 Stop
⏱ SFO · 1h 10m
10:39
04/14/2026
SEA
₹13,237
per person
✕ Non-refundable11 fare options
Southwest Airlines
WN-972
20:30
04/14/2026
DEN
2h 0m
Non-stop
22:30
04/14/2026
SEA
₹14,093
per person
✕ Non-refundable🔥 Last 2 seats12 fare options
Hawaiian Airlines
HA-4869
11:47
04/14/2026
DEN
2h 6m
Non-stop
13:53
04/14/2026
SEA
₹14,687
per person
✕ Non-refundable5 fare options
Frontier Airlines
F9-3155
21:30
04/14/2026
DEN
21h 12m
1 Stop
⏱ LAX · 16h 31m
18:42
04/15/2026
+1
SEA
₹14,914
per person
✕ Non-refundable
Southwest Airlines
WN-4204
09:00
04/14/2026
DEN
1h 55m
Non-stop
10:55
04/14/2026
SEA
₹15,031
per person
✕ Non-refundable🔥 Last 2 seats12 fare options
Southwest Airlines
WN-2068
15:00
04/14/2026
DEN
1h 55m
Non-stop
16:55
04/14/2026
SEA
₹15,031
per person
✕ Non-refundable🔥 Last 5 seats12 fare options
alaskaairlines
AS-682
11:47
04/14/2026
DEN
2h 6m
Non-stop
13:53
04/14/2026
SEA
₹15,031
per person
✕ Non-refundable10 fare options
Southwest Airlines Dallas
WN-2086
09:00
04/14/2026
DEN
4h 25m
1 Stop
⏱ SMF · 0h 55m
13:25
04/14/2026
SEA
₹15,186
per person
✕ Non-refundable🔥 Last 3 seats7 fare options
Delta Air Lines
DL-2544
05:30
04/14/2026
DEN
3h 45m
1 Stop
⏱ SLC · 0h 43m
09:15
04/14/2026
SEA
₹15,241
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-1581
08:10
04/14/2026
DEN
4h 15m
1 Stop
⏱ SLC · 1h 14m
12:25
04/14/2026
SEA
₹15,241
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-1553
12:30
04/14/2026
DEN
4h 18m
1 Stop
⏱ SLC · 1h 29m
16:48
04/14/2026
SEA
₹15,241
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-2663
18:27
04/14/2026
DEN
5h 32m
1 Stop
⏱ SLC · 2h 45m
23:59
04/14/2026
SEA
₹15,241
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-1553
12:30
04/14/2026
DEN
6h 0m
1 Stop
⏱ SLC · 3h 9m
18:30
04/14/2026
SEA
₹15,241
per person
✕ Non-refundable8 fare options
😕 No flights match your filters.
Denver (DEN)
📍 Denver International Airport
🌍 United States
🕐 GMT -7
📐 Latitude: 39.861698150635
📐 Longitude: -104.672996521
Seattle (SEA)
📍 Seattle Tacoma International Airport
🌍 United States
🕐 GMT -8
📐 Latitude: 47.449001
📐 Longitude: -122.308998
✈ Distance: Denver,USA to Seattle,USA — 1645.07 km
📅 Results on this page are loaded for 14 Apr 2026. Click View all flights for the complete live search.
Denver to Seattle — what to expect when booking
The DEN–SEA route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Denver,USA and Seattle,USA is approximately
1645.07 km.
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❓ Frequently asked questions — Denver to Seattle flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Denver,USA (DEN) and Seattle,USA (SEA) is approximately 1645.07 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.