RAP - SEA

$196 Find Cheap Flights from Rapid City to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rapid City to Seattle departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$303
Typical prices: $603-$488
Multiple Airlines
gio 8/27sab 8/29
RAP - SEA • 1 stop
Cheapest one-way
$196
Multiple Airlines
mer 10/21
RAP - SEA • 2 stops
Top airlines
Cheapest • from $319 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Rapid City and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $509 (round-trip)
Shortest trip • 6h 29m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Rapid City to Seattle (RAP-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rapid City to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Rapid City to Seattle

gio, ago 27 - sab, ago 29
Multiple Airlines Logo
4:45 pm - 10:35 am
RAP
-
SEA
18h 50m
1 stop
Multiple Airlines Logo
8:13 pm - 2:40 pm
SEA
-
RAP
17h 27m
1 stop
$303Multiple Airlines
gio, ago 27 - mar, set 1
Delta Logo
4:30 pm - 11:54 pm
RAP
-
SEA
8h 24m
1 stop
Delta Logo
2:30 pm - 10:37 pm
SEA
-
RAP
7h 07m
1 stop
$319Delta
gio, ago 27 - mar, set 1
United Airlines Logo
5:58 pm - 11:04 pm
RAP
-
SEA
6h 06m
1 stop
United Airlines Logo
3:54 pm - 10:28 pm
SEA
-
RAP
5h 34m
1 stop
$329United Airlines
gio, ago 27 - mar, set 1
Delta Logo
4:30 pm - 11:54 pm
RAP
-
SEA
8h 24m
1 stop
Delta Logo
2:30 pm - 10:37 pm
SEA
-
RAP
7h 07m
1 stop
$339Delta
gio, ago 20 - gio, ago 27
American Airlines Logo
11:45 am - 8:10 pm
RAP
-
SEA
9h 25m
1 stop
American Airlines Logo
12:40 am - 9:49 am
SEA
-
RAP
8h 09m
1 stop
$344American Airlines
gio, ago 27 - sab, ago 29
Multiple Airlines Logo
4:45 pm - 10:35 am
RAP
-
SEA
18h 50m
1 stop
Multiple Airlines Logo
8:13 pm - 2:40 pm
SEA
-
RAP
17h 27m
1 stop
$345Multiple Airlines
gio, ago 13 - sab, ago 15
Multiple Airlines Logo
10:06 pm - 11:08 am
RAP
-
SEA
14h 02m
1 stop
Multiple Airlines Logo
8:13 pm - 9:16 pm
SEA
-
RAP
24h 03m
1 stop
$346Multiple Airlines
gio, ago 13 - sab, ago 15
Multiple Airlines Logo
10:06 pm - 11:08 am
RAP
-
SEA
14h 02m
1 stop
Multiple Airlines Logo
8:13 pm - 9:16 pm
SEA
-
RAP
24h 03m
1 stop
$351Multiple Airlines
mer, ago 5 - mer, ago 19
Multiple Airlines Logo
3:36 pm - 11:08 am
RAP
-
SEA
20h 32m
2 stops
Multiple Airlines Logo
8:13 pm - 3:55 pm
SEA
-
RAP
18h 42m
1 stop
$362Multiple Airlines
ven, nov 27 - lun, nov 30
Delta Logo
11:30 am - 4:35 pm
RAP
-
SEA
6h 05m
1 stop
Delta Logo
6:05 am - 3:46 pm
SEA
-
RAP
8h 41m
1 stop
$369Delta
Booking Insights

KAYAK's insights & trends for Rapid City to Seattle flights

Get data-powered insights and trends into flights from Rapid City to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Rapid City to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Rapid City to Seattle departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Rapid City to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Rapid City to Seattle is February, where tickets cost $288 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $564 and $557 respectively.

Good to know

Low seasonJanuary
Cheapest flight$196
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Rapid City to Seattle

When to book flights from Rapid City to Seattle

Are your dates flexible? Find out the best times to travel from Rapid City to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Rapid City to Seattle

  • What is the cheapest flight from Rapid City to Seattle?

    In the last 5 days, the lowest price for a flight from Rapid City to Seattle was $196 for a one-way ticket and $319 for a round-trip.

  • Do I need a passport to fly between Rapid City and Seattle?

    No, a passport isn't needed to fly from Rapid City to Seattle. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Rapid City to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Rapid City to Seattle?

    Star Alliance is the only airline alliance operating flights between Rapid City and Seattle.

  • How does KAYAK find such low prices on flights from Rapid City to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Rapid City to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Rapid City to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Rapid City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Rapid City to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Rapid City with another airline. Booking your flights between Rapid City and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Rapid City to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Rapid City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Rapid City to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Rapid City to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Rapid City to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9796 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

10.0 ExcellentBill, Jun 2026
IAH - LAX
Read more United Airlines reviews

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

Everything you need to know for your flight from Rapid City to Seattle

Information on your arrival and departure airports