Seattle → Denver flights
Seattle (BFI, SEA)→Denver (APA, DEN)
from$103
Last observed price · Last checked: 11 Aug 2026 · Price may change
Selected search
Last checked: 11 Aug 2026 · Price may change
$103
Sat 26 Sep 2026 → Sat 3 Oct 2026
Frontier AirlinesNon-stop7 nights
CheapestLast checked: 11 Aug 2026 · Price may change
$103 lowest$139 average2h 54m fastest
Tickets found in the last 7 days
The lowest fares our queries caught, cheapest first.
FA$103Cheapest26 Sep 2026 → 3 Oct 2026Frontier Airlines · Non-stop · 16:27Last checked: 11 Aug 2026 · Price may change7 nightsView ticket →FA$12629 Aug 2026 → 31 Aug 2026Frontier Airlines · Non-stop · 19:06Last checked: 11 Aug 2026 · Price may change2 nightsView ticket →FA$1489 Oct 2026 → 11 Oct 2026Frontier Airlines · Non-stop · 19:41Last checked: 11 Aug 2026 · Price may change2 nightsView ticket →FA$1798 Oct 2026 → 12 Oct 2026Frontier Airlines · Non-stop · 19:41Last checked: 11 Aug 2026 · Price may change4 nightsView ticket →
Starting prices by month
The lowest fare our queries observed in each month. Open a month to see its days; click a day with no price and we will search it for you.
Observed priceLowest monthno price observedLast checked: 11 Aug 2026
Seattle → DenverSat 26 Sep 2026 · $103
Find flightsRoute facts
Direct flights
Non-stop
BFI - APA, 2h 54m
Airlines seen
1
Frontier Airlines
Cheapest month
September 2026
$103
Average observed
$139
Typical duration
2h 54m
Alternative airports
2
SEA, DEN
Frequently asked
Are there direct flights from Seattle to Denver?+−
Yes. We have seen non-stop flights on this route, flown by Alaska Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
How much is a flight from Seattle to Denver?+−
The lowest fare we have observed is $103, found on 11 Aug 2026. Prices move, so read it as a floor rather than a quote.
Which airlines fly from Seattle to Denver?+−
These are the carriers we have seen on the route: Frontier Airlines.
When is the cheapest month to fly from Seattle to Denver?+−
In our observations September 2026 is the cheapest month so far, at $103.
Similar routes
Last checked: 11 Aug 2026