Cheap Flights from Denver to Seattle
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The latest fare from Denver to Seattle: $168 round trip, Dec 5 – Dec 12, seen Nov 5. Prices by month are below.
Across 5 months of observations from Denver to Seattle, the lowest round-trip economy fare we recorded was $46, in September. The typical economy fare was $158. September was the cheapest month we saw and November the dearest.
The most recent economy price we saw on this route was $168 on Frontier, seen Nov 5.
See every deal from Denver, to Seattle, or the return direction Seattle to Denver.
Latest economy price we saw: Denver to Seattle
The most recent economy round-trip fare we saw on this route.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Denver (DEN) to Seattle (SEA) | $168 | 8.2¢ | Dec 5 – Dec 12 | Frontier | Nov 5 | Check price |
Economy price history: Denver to Seattle
The lowest fares we saw each month.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Nov 2026 | $132 | $173 | 51 |
| Oct 2026 | $111 | $201 | 147 |
| Sep 2026 | $46 | $171 | 116 |
| Aug 2026 | $60 | $158 | 172 |
| Jul 2026 | $88 | $88 | 1 |
Frequently asked questions
How many flight deals from Denver to Seattle are on Sparkflights right now?
There are 0 deals from Denver to Seattle on the board right now.
What is the lowest price ever seen from Denver to Seattle?
The lowest economy fare we've recorded from Denver to Seattle is $46, based on 487 price observations over 5 months.
How much does a flight from Denver to Seattle cost?
The typical round-trip economy fare we observed from Denver to Seattle is $158, against a recorded low of $46. These are observations, not quotes.
When is the cheapest month to fly Denver to Seattle?
For economy fares from Denver to Seattle, September was the cheapest month we observed and November the dearest, over 5 months of data.
What is the current price from Denver to Seattle?
The most recent economy fare we saw from Denver to Seattle is $168, on Nov 5.