Cheap flights from Washington to Rapid City

One-way fares from $292 · WAS → RAP · prices found by travellers in the last 48 hours

Compare all dates Rapid City → Washington
Cheapest fare
$292

Frontier Airlines · Tue, Nov 10

Cheapest month
November

from $292

Direct flights
Not recently

Usually 1+ stop

Quickest trip
10h 02m

2,250 km

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Cheapest month to fly from Washington to Rapid City

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $292

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart19:05 Tue, Nov 10BWI → RAP 10h 02m · 2 stops
$292one way, per person
View deal
Frontier Airlines
Depart13:56 Sat, Nov 14BWI → RAP 11h 21m · 3 stops
$343one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Rapid City

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in Rapid CityCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in Rapid CityTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Rapid CityPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Rapid CityCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Washington to Rapid City

Washington (WAS) and Rapid City (RAP) are about 2,250 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 10h 02m. Over the next few months, one-way fares start from $292, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Washington to Rapid City?

The cheapest one-way fare we've seen recently is $292 with Frontier Airlines, departing Tuesday, November 10, 2026.

What is the cheapest month to fly from Washington to Rapid City?

November 2026 currently has the lowest fares, from $292 one way.

Are there direct flights from Washington to Rapid City?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Washington to Rapid City?

The quickest journey we've seen takes about 10h 02m. Washington and Rapid City are around 2,250 km apart.

Which airlines fly from Washington to Rapid City?

Recent fares on this route were with Frontier Airlines.

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