
Cheap Flights to Dewey County from $193
View $193 flight on Thu, Dec 31, 2026Opens in a new windowPopular airlines to Dewey County
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How much is the cheapest flight to Dewey County?
Prices were available within the past 7 days and start at $193 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 2 - Fri, Oct 9
DEN
Denver
PIR
Pierre
$240
Roundtrip
just found

Thu, Oct 1 - Sat, Oct 10
DEN
Denver
PIR
Pierre
$254
Roundtrip
found 1 day ago

Fri, Oct 2 - Fri, Oct 9
DEN
Denver
PIR
Pierre
$270
Roundtrip
just found

Thu, Oct 1 - Sat, Oct 10
DEN
Denver
PIR
Pierre
$284
Roundtrip
found 1 day ago

Fri, Nov 6 - Mon, Nov 9
BOI
Boise
PIR
Pierre
$304
Roundtrip
found 3 days ago

Tue, Feb 2 - Sun, Feb 7
BOI
Boise
PIR
Pierre
$314
Roundtrip
found 5 days ago

Fri, Oct 9 - Mon, Oct 12
PHX
Phoenix
PIR
Pierre
$314
Roundtrip
found 3 days ago

Wed, Sep 16 - Mon, Sep 21
GJT
Grand Junction
PIR
Pierre
$316
Roundtrip
found 1 day ago

Thu, Sep 10 - Tue, Sep 15
GJT
Grand Junction
PIR
Pierre
$319
Roundtrip
found 3 days ago

Thu, Dec 3 - Sun, Dec 6
PHX
Phoenix
PIR
Pierre
$319
Roundtrip
found 3 days ago
Trending flights to Dewey County
These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 2 - Fri, Oct 9
DEN
Denver
PIR
Pierre
$240
Roundtrip
just found
Frequently asked questions
How do I find cheap flights to Dewey County that have flexible change policies?
It's as easy as counting to three with Expedia. Step 1: Type in your travel details and click on the "Search" button. Next, check the "No change fee" box just below the "Flexible change policies" subheading on the top left of your screen. Step 3. Book your cheap and flexible ticket to Dewey County.
Which airlines fly to Dewey County?
When you're ready to lock in your seat to or near Dewey County, these well-known carriers are waiting to welcome you on board:
- American Airlines - 186 flights to or near Dewey County each month, including 186 flights to Rapid City Regional Airport (RAP) per month.
- United Airlines - 156 flights to or near Dewey County each month, including 156 flights to Rapid City Regional Airport (RAP) per month.
- Delta Air Lines - 86 flights to or near Dewey County each month, including 86 flights to Rapid City Regional Airport (RAP) per month.
How can I find cheap tickets to Dewey County?
Book ahead of time, consider nearby airports, avoid peak travel periods — there are lots of ways! Another one is to use Expedia's "flexible dates" feature. Find your Dewey County flight, then check out the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Dewey County was $240.
How much is a flight to Dewey County?
If you were jetting one way from Denver (DEN), you could've nabbed an affordable fare for $193 in the last seven days. Round-trip flights to Dewey County ranged from $240 to $319 over the same period.
What are the most popular airports to fly into in Dewey County?
Rapid City Regional Airport (RAP) is the main jumping-off point for people hoping to explore Dewey County. Around 451 flights per month touch down here.
When is the cheapest time to fly to Dewey County?
Jet off on a Tuesday to boost your chances of bagging the cheapest airfare to Dewey County. Mondays are usually the next most affordable day to depart. Saturday is generally the costliest day to fly anywhere.
How much is a plane ticket to Dewey County?
In the last seven days, plane fares to Dewey County ranged between $240 and $319. Prices rise as your travel date nears, so grab a good deal today.
What months are the cheapest to book a flight to Dewey County?
February is the perfect month to pick up a terrific deal to Dewey County. Be aware that the priciest time to make a booking in the U.S. Isn't during the peak of summer, but the month of December.
How long is a flight to Dewey County?
Your flight to Dewey County could be long or it could be short depending on where you depart from. Before you cram your laptop with movies and TV shows, check out the average flight times for these top domestic routes:
- Denver, CO (DEN-Denver Intl.) to Rapid City Regional Airport (RAP) - 1 hour and 13 minutes
- Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Rapid City Regional Airport (RAP) - 2 hours and 19 minutes
- Chicago, IL (ORD-OHare Intl.) to Rapid City Regional Airport (RAP) - 2 hours and 26 minutes
What is the best time to go to Dewey County?
If you're eager to enjoy Dewey County's most populous city when it's really buzzing, set off for Mobridge sometime in May, July and August. Like most destinations in the Northern Hemisphere, summer here begins June 20, with average temperatures ranging between 65ºF and 80ºF.
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Travel information
*Flight schedules are subject to change.
*Available to One Key members.
*Flight schedules are subject to change.
*Available to One Key members.