RKS - SEA

$428 Find Cheap Flights from Rock Springs to Seattle - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$428
Typical prices: $328-$539
United Airlines
Sat 11/10Wed 11/14
RKS - SEA • 1 stop
When to travel
January
Cheapest • 19% price drop
January
Most popular
Good to know
+1
Good to know
+1
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Flight Deals

Cheap Flights from Rock Springs to Seattle (RKS-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Rock Springs to Seattle

Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
5:00 am - 9:47 amRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
5h 47m1 stop Denver Intl
United Airlines Logo
5:05 am - 1:44 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
7h 39m1 stop Denver Intl
$428United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:23 pm - 9:19 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
7h 56m1 stop Denver Intl
United Airlines Logo
3:49 pm - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
5h 31m1 stop Denver Intl
$428United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
2:23 pm - 9:19 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
7h 56m1 stop Denver Intl
United Airlines Logo
1:16 pm - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
8h 04m2 stops San Francisco Denver Intl
$434United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
5:00 am - 7:09 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
15h 09m2 stops Denver Intl Los Angeles
United Airlines Logo
3:49 pm - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
5h 31m1 stop Denver Intl
$434United Airlines
Tue, Nov 10 - Sat, Nov 14
United Airlines Logo
5:00 am - 7:09 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
15h 09m2 stops Denver Intl Los Angeles
United Airlines Logo
5:05 am - 1:44 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
7h 39m1 stop Denver Intl
$434United Airlines
Booking Insights

Price, demand and travel trends for Rock Springs to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Rock Springs to Seattle with more confidence.

How much is a round-trip flight from Rock Springs to Seattle?

Round-trip flights from Rock Springs to Seattle start at $428. Prices are typical for this route right now, with typical round-trip fares ranging from $328 to $539. The lowest price found in the past 5 days was $428 on United Airlines.

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Key details for Rock Springs to Seattle flights

Low season

March

Cheapest flight

$428
Most popular time to fly and prices are also 19% lower on average.
Flight from Rock Springs to Seattle

When to book flights from Rock Springs to Seattle

Are your dates flexible? Find out the best times to travel from Rock Springs to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Rock Springs to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What cabin classes can I book on flights from Rock Springs to Seattle?

    Only Economy Class is available on flights from Rock Springs to Seattle.

  • Do I need a passport to fly from Rock Springs to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How much should I expect to pay for a Rock Springs to Seattle flight?

    Round-trip flights from Rock Springs to Seattle range from $328 to $539, with an average of $403 over the past 12 months. Anything below $328 counts as a good deal.

  • Have flight prices from Rock Springs to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $428 to $1,015. That means the highest observed fare was about 2x higher than the lowest one.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Rock Springs to Seattle?

    Flights from Rock Springs to Seattle usually depart from Rock Springs Sweetwater County (RKS) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Rock Springs to Seattle pass through?

    Most connecting flights from Rock Springs to Seattle pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Rock Springs to Seattle?

    Yes. Being flexible with your travel dates can save you up to 41% on the Rock Springs to Seattle route. Friday is the cheapest departure day at $328 round-trip on average, while Wednesday is the most expensive at $550, a difference of $222. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Rock Springs and Seattle?

    Seattle is 1 hour behind Rock Springs (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Rock Springs to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Wednesday. On this route, Friday flights average $328 - about $222 less than Wednesday (40% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Rock Springs to Seattle trip for January. Fares historically average $328 round-trip in that month - typically $510 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Rock Springs to Seattle

Complete your trip to Seattle with a hotel stay or car rental

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle