Cheap Flights from Seattle to Denver
Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Denver
Prices updated 24 days ago
486,190 searches this week
171 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from Seattle to Denver
Explore current cheapest deals departing from Seattle to Denver
Round trip
Sort by: Cheapest
August 19 - August 25
SEA - Denver
$128
$96
Round trip
September 1 - September 9
SEA - Denver
$112
$96
Round trip
September 9 - September 16
SEA - Denver
$122
$96
Round trip
September 24 - October 20
SEA - Denver
$117
$102
Round trip
September 24 - October 21
SEA - Denver
$117
$102
Round trip
September 25 - October 20
SEA - Denver
$117
$102
Round trip
September 25 - October 21
SEA - Denver
$117
$102
Round trip
October 9 - October 21
SEA - Denver
$129
$102
Round trip
October 8 - October 21
SEA - Denver
$130
$102
Round trip
October 8 - October 20
SEA - Denver
$129
$102
Round trip
Unlock all 500+ flight deals to Denver and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from Seattle to Denver
How much is a round trip from Seattle to Denver
Regular price: $99 - $230
Prices for flights from Seattle to Denver are currently below the regular range.
The regular price range for this route is typically between $99 and $230. The current lowest deal is $96 with Frontier Airlines, for travel from August 19 to August 25.
now $96
Low $99
High $230
The cheapest time to fly from Seattle to Denver
The cheapest month to fly from Seattle to Denver is April, with a median price of $118. The most expensive month is March, with a median price of $463. Prices are generally lower from January to November.
April
Flights from $118
March
Flights from $463
Direct flights from Seattle to Denver
Frontier Airlines
Last-minute flights going from Seattle to Denver
Sun, Jun 21
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$337
$326
One-way
Mon, Jun 22
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$327
$319
One-way
Thu, Jun 25
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$322
$287
One-way
Fri, Jun 26
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$318
$285
One-way
Sat, Jun 27
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$318
$286
One-way
Sat, Jun 27
SEA - Denver
Seattle (SEA) - Denver (DEN)
Frontier Airlines
$318
$289
One-way
Biggest price drops on these dates for flights from Seattle to Denver
Aug 18 - Aug 20
$415 → $194
53%
Oct 14 - Oct 19
$247 → $191
23%
Aug 11 - Aug 15
$234 → $179
24%
Dec 12 - Dec 15
$279 → $227
19%
Popular Airports to fly from Seattle to Denver
Seattle - Denver route insights
💸 Price insights
Recent fares are near the typical level
Recent fares from Seattle to Denver are near the typical level of $304.
📅 Best time to fly
April is historically cheapest at $118
Historically, April is the cheapest month to fly from Seattle to Denver, with a median price of $118.
⏱️ Flight duration
Flights typically take 9h 16m
The median flight duration from Seattle to Denver is 9 hours and 16 minutes.
✈️ Airlines & availability
Frontier Airlines offers direct flights
Frontier Airlines is one of the carriers that historically offers direct flights on this route.
🏆 Airline highlight
Frontier Airlines has a deal for $96
A recent deal from Frontier Airlines to Denver was found for $96.
🎯 Booking tip
Deals appear frequently
Deals for flights from Seattle to Denver appear frequently, with over 1 deal per day.
Seattle main airports to depart from
Seattle–Tacoma International (SEA)
Seattle–Tacoma International is a key departure point for flights from Seattle to Denver.
📍 ~18 km from Seattle (reachable by car or train).
💸 Flights from ~$96
Boeing Field (BFI)
Boeing Field offers an alternative departure option for flights from Seattle to Denver.
📍 ~8 km from Seattle (reachable by car).
💸 Flights from ~$538
Kenmore Air Harbor Seaplane Base (LKE)
Kenmore Air Harbor Seaplane Base is another departure choice for your trip to Denver.
📍 ~3 km from Seattle (reachable by car).
💸 Flights from ~$623
Denver main airports to arrive at
Denver International (DEN)
Denver International Airport is the primary arrival airport for flights to Denver from Seattle.
📍 ~30 km from city center (reachable by car, bus, or rail)
💸 Flights from ~$96
Airports nearby Denver used as alternative
Colorado Springs (COS)
Colorado Springs (COS) is a reliable alternative to Denver, offering a robust flight schedule with multiple major carriers.
📍 ~110 km from Denver (reachable by car, ~1.5 hours depending on traffic)
💸 Flights from ~$271
Eagle County Regional (EGE)
Eagle County Regional (EGE) is a primary alternative for travelers located in the western mountains, offering significant hub connectivity.
📍 ~190 km from Denver (reachable by car)
💸 Flights from ~$551
Aspen–Pitkin County (ASE)
Aspen–Pitkin County (ASE) offers frequent service to major US hubs, with a full range of cabin classes.
📍 ~200 km from Denver (reachable by car)
💸 Flights from ~$322
Cheyenne Regional (CYS)
Cheyenne Regional (CYS) is geographically close to the northern Denver metro area, with easy parking and fast security.
📍 ~160 km from Denver (reachable by car)
💸 Flights from ~$339
Yampa Valley (HDN)
Yampa Valley (HDN) serves as a viable gateway for the Northwest Colorado region, offering business class service.
📍 ~200 km from Denver (reachable by car)
💸 Flights from ~$359
Business & First Class Flight Deals to Denver
Discover luxury on the budget with premium cabin class on flights from Seattle to Denver.
Elite
Best Elite deals to Denver
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From SEA
Elite
Aug 26
Denver, United States
79% AI deal score
$995
$675
Save $320
From SEA
Elite
Aug 25
Denver, United States
79% AI deal score
$1,011
$675
Save $336
From SEA
Elite
Aug 19
Denver, United States
78% AI deal score
$877
$675
Save $202
From SEA
Elite
Aug 19
Denver, United States
77% AI deal score
$865
$675
Save $190
From SEA
Elite
Aug 11
Denver, United States
72% AI deal score
$822
$675
Save $147
From SEA
Elite
Aug 11
Denver, United States
72% AI deal score
$842
$675
Save $167
From SEA
Elite
Aug 04
Denver, United States
72% AI deal score
$823
$675
Save $148
From SEA
Elite
Aug 26
Denver, United States
72% AI deal score
$845
$675
Save $170
From SEA
Elite
Aug 22
Denver, United States
72% AI deal score
$845
$675
Save $170
From SEA
Elite
Aug 26
Denver, United States
72% AI deal score
$833
$675
Save $158
From SEA
Elite
Aug 25
Denver, United States
72% AI deal score
$827
$675
Save $152
From SEA
Elite
Aug 26
Denver, United States
72% AI deal score
$836
$675
Save $161
From SEA
Elite
Aug 12
Denver, United States
72% AI deal score
$824
$675
Save $149
From SEA
Elite
Aug 11
Denver, United States
71% AI deal score
$788
$675
Save $113
From SEA
Elite
Aug 11
Denver, United States
71% AI deal score
$787
$675
Save $112
From SEA
Elite
Aug 11
Denver, United States
71% AI deal score
$816
$675
Save $141
From SEA
Elite
Aug 04
Denver, United States
71% AI deal score
$786
$675
Save $111
From SEA
Elite
Aug 26
Denver, United States
71% AI deal score
$800
$675
Save $125
From SEA
Elite
Sep 01
Denver, United States
71% AI deal score
$831
$675
Save $156
From SEA
Elite
Aug 22
Denver, United States
71% AI deal score
$800
$675
Save $125
From SEA
Elite
Aug 19
Denver, United States
71% AI deal score
$798
$675
Save $123
From SEA
Elite
Sep 05
Denver, United States
71% AI deal score
$837
$675
Save $162
From SEA
Elite
Sep 23
Denver, United States
71% AI deal score
$807
$675
Save $132
From SEA
Elite
Aug 25
Denver, United States
71% AI deal score
$798
$675
Save $123
From SEA
Elite
Sep 19
Denver, United States
71% AI deal score
$845
$675
Save $170
From SEA
Elite
Aug 25
Denver, United States
71% AI deal score
$789
$675
Save $114
From SEA
Elite
Sep 02
Denver, United States
71% AI deal score
$836
$675
Save $161
From SEA
Elite
Sep 05
Denver, United States
71% AI deal score
$832
$675
Save $157
From SEA
Elite
Sep 22
Denver, United States
71% AI deal score
$805
$675
Save $130
From SEA
Elite
Aug 05
Denver, United States
71% AI deal score
$785
$675
Save $110
From SEA
Elite
Oct 03
Denver, United States
71% AI deal score
$861
$675
Save $186
From SEA
Elite
Sep 30
Denver, United States
71% AI deal score
$807
$675
Save $132
From SEA
Elite
Aug 11
Denver, United States
70% AI deal score
$779
$675
Save $104
From SEA
Elite
Aug 11
Denver, United States
70% AI deal score
$779
$675
Save $104
From SEA
Elite
Aug 11
Denver, United States
70% AI deal score
$779
$675
Save $104
From SEA
Elite
Sep 15
Denver, United States
70% AI deal score
$779
$675
Save $104
From SEA
Elite
Sep 01
Denver, United States
70% AI deal score
$771
$675
Save $96
From SEA
Elite
Sep 26
Denver, United States
70% AI deal score
$795
$675
Save $120
From SEA
Elite
Sep 23
Denver, United States
70% AI deal score
$780
$675
Save $105
From SEA
Elite
Sep 29
Denver, United States
70% AI deal score
$803
$675
Save $128
From SEA
Elite
Jul 08
Denver, United States
70% AI deal score
$873
$747
Save $126
From SEA
Elite
Aug 26
Denver, United States
70% AI deal score
$874
$667
Save $207
From SEA
Elite
Aug 12
Denver, United States
70% AI deal score
$907
$667
Save $240
From SEA
Elite
Aug 25
Denver, United States
70% AI deal score
$884
$667
Save $217
From SEA
Elite
Aug 01
Denver, United States
70% AI deal score
$866
$667
Save $199
From SEA
Elite
Aug 22
Denver, United States
70% AI deal score
$879
$667
Save $212
From SEA
Elite
Jul 29
Denver, United States
70% AI deal score
$800
$667
Save $133
From SEA
Elite
Aug 18
Denver, United States
70% AI deal score
$871
$667
Save $204
From SEA
Elite
Aug 05
Denver, United States
70% AI deal score
$900
$688
Save $212
From SEA
Elite
Sep 01
Denver, United States
69% AI deal score
$796
$674
Save $122
From SEA
Elite
Sep 05
Denver, United States
69% AI deal score
$791
$674
Save $117
From SEA
Elite
Sep 15
Denver, United States
69% AI deal score
$751
$675
Save $76
From SEA
Elite
Sep 19
Denver, United States
69% AI deal score
$773
$675
Save $98
From SEA
Elite
Sep 05
Denver, United States
69% AI deal score
$755
$675
Save $80
From SEA
Elite
Sep 22
Denver, United States
69% AI deal score
$768
$675
Save $93
From SEA
Elite
Jul 16
Denver, United States
69% AI deal score
$868
$756
Save $112
From SEA
Elite
Oct 24
Denver, United States
69% AI deal score
$824
$667
Save $157
From SEA
Elite
Jul 30
Denver, United States
69% AI deal score
$818
$708
Save $110
From SEA
Elite
Jul 16
Denver, United States
69% AI deal score
$814
$708
Save $106
From SEA
Elite
Jul 17
Denver, United States
69% AI deal score
$826
$709
Save $117
From SEA
Elite
Aug 02
Denver, United States
69% AI deal score
$871
$709
Save $162
From SEA
Elite
Jul 10
Denver, United States
69% AI deal score
$828
$709
Save $119
From SEA
Elite
Jul 09
Denver, United States
69% AI deal score
$816
$709
Save $107
From SEA
Elite
Jul 24
Denver, United States
69% AI deal score
$828
$709
Save $119
From SEA
Elite
Aug 18
Denver, United States
68% AI deal score
$727
$674
Save $53
From SEA
Elite
Aug 19
Denver, United States
68% AI deal score
$747
$674
Save $73
From SEA
Elite
Aug 05
Denver, United States
68% AI deal score
$737
$674
Save $63
From SEA
Elite
Aug 19
Denver, United States
68% AI deal score
$750
$674
Save $76
From SEA
Elite
Aug 11
Denver, United States
68% AI deal score
$748
$674
Save $74
From SEA
Elite
Sep 01
Denver, United States
68% AI deal score
$770
$674
Save $96
From SEA
Elite
Aug 18
Denver, United States
68% AI deal score
$741
$674
Save $67
From SEA
Elite
Aug 18
Denver, United States
68% AI deal score
$744
$674
Save $70
From SEA
Elite
Aug 19
Denver, United States
68% AI deal score
$739
$674
Save $65
From SEA
Elite
Aug 12
Denver, United States
68% AI deal score
$737
$674
Save $63
From SEA
Elite
Aug 18
Denver, United States
68% AI deal score
$750
$675
Save $75
From SEA
Elite
Aug 26
Denver, United States
68% AI deal score
$748
$675
Save $73
From SEA
Elite
Aug 22
Denver, United States
68% AI deal score
$750
$675
Save $75
From SEA
Elite
Aug 19
Denver, United States
68% AI deal score
$743
$675
Save $68
From SEA
Elite
Sep 01
Denver, United States
68% AI deal score
$741
$675
Save $66
From SEA
Elite
Sep 09
Denver, United States
68% AI deal score
$745
$675
Save $70
From SEA
Elite
Nov 17
Denver, United States
68% AI deal score
$725
$675
Save $50
From SEA
Elite
Sep 19
Denver, United States
68% AI deal score
$720
$675
Save $45
From SEA
Elite
Jun 26
Denver, United States
68% AI deal score
$1,059
$940
Save $119
From SEA
Elite
Aug 05
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 11
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 18
Denver, United States
67% AI deal score
$721
$674
Save $47
From SEA
Elite
Aug 11
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 04
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 18
Denver, United States
67% AI deal score
$715
$674
Save $41
From SEA
Elite
Aug 11
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 19
Denver, United States
67% AI deal score
$715
$674
Save $41
From SEA
Elite
Aug 04
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 05
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 11
Denver, United States
67% AI deal score
$725
$674
Save $51
From SEA
Elite
Aug 11
Denver, United States
67% AI deal score
$720
$674
Save $46
From SEA
Elite
Aug 05
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 19
Denver, United States
67% AI deal score
$725
$674
Save $51
From SEA
Elite
Aug 04
Denver, United States
67% AI deal score
$714
$674
Save $40
From SEA
Elite
Aug 04
Denver, United States
67% AI deal score
$726
$674
Save $52
From SEA
Elite
Aug 12
Denver, United States
67% AI deal score
$714
$674
Save $40