Your next trip, last seen at €108
Lowest observedFrontier Airlines · 2 stops · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €108, departing 18 Nov 2026 (Last checked: 16 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines
- Typical journey time
- 9h 48m
About this route
Explore the fares we observed from Washington to Missoula. Prices move often, so pick your dates to see the latest options.
- Route distance
- 3,107 km
- Typical journey time
- 9h 48m
- Seen on fares with a connection
- Alaska Airlines, United Airlines, Frontier Airlines, Allegiant Air
- Alternative airports
- DCA
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- Ronald Reagan Washington National Airport (DCA) → Washington, city gazetteer reference point (38.8951, -77.0364): ≈ 5 km.
- Washington Dulles International Airport (IAD) → Washington, city gazetteer reference point (38.8951, -77.0364): ≈ 37 km.
- Missoula Montana Airport (MSO) → Missoula, city gazetteer reference point (46.8721, -113.9940): ≈ 9 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest one-way fare we saw per airline
Cheapest airline from Washington to Missoula: Frontier Airlines, from €108 (checked 16 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €108Nov 18, 2026 | 20 |
| Alaska Airlines | €178Nov 7, 2026 | 40 |
| United Airlines | €230Jan 13, 2027 | 28 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Washington to Missoula?
The lowest fare Routavio has observed is €108, found on 16 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Washington to Missoula?
In our observations November 2026 is the cheapest month so far, at €108.
Are there direct flights from Washington to Missoula?
Our data holds no non-stop flight from Washington to Missoula. The fares on this page include at least one stop.
Which airlines fly from Washington to Missoula?
Routavio has seen these carriers on the route: Alaska Airlines, Allegiant Air, Frontier Airlines, United Airlines.
How long does the flight from Washington to Missoula take?
Across the 99 fares Routavio observed, the average journey time is 12h 43m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Washington to Missoula fares were non-stop?
None of the 99 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Washington to Missoula?
Cheapest airline from Washington to Missoula: Frontier Airlines, from €108 (checked 16 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 23 Oct 2026