Cheap flights from Watertown to Rapid City

One-way fares from $735 · ATY → RAP · prices found by travellers in the last 48 hours

Compare all dates Rapid City → Watertown
Cheapest fare
$735

United Airlines · Thu, Nov 12

Cheapest month
November

from $735

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 35m

490 km

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Cheapest month to fly from Watertown to Rapid City

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

  1. November 2026 Cheapest $735

Cheapest dates in November 2026

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

United Airlines
Depart11:10 Thu, Nov 12ATY → RAP 3h 39m · 1 stop
$735one 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 Watertown to Rapid City

Watertown (ATY) and Rapid City (RAP) are about 490 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 3h 35m. Over the next few months, one-way fares start from $735, 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 Watertown to Rapid City?

The cheapest one-way fare we've seen recently is $735 with United Airlines, departing Thursday, November 12, 2026.

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

November 2026 currently has the lowest fares, from $735 one way.

Are there direct flights from Watertown to Rapid City?

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

How long is the flight from Watertown to Rapid City?

The quickest journey we've seen takes about 3h 35m. Watertown and Rapid City are around 490 km apart.

Which airlines fly from Watertown to Rapid City?

Recent fares on this route were with United Airlines.

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