RKS - SEA

$348 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
$348
Typical prices: $328-$539
United Airlines
Tue 4/10Tue 4/17
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

Sat, Apr 10 - Sat, Apr 17
United Airlines Logo
5:25 am - 9:59 amRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
5h 34m1 stop Denver Intl
United Airlines Logo
5:07 am - 1:30 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
7h 23m1 stop Denver Intl
$348United Airlines
Sat, Apr 10 - Sat, Apr 17
United Airlines Logo
5:25 am - 9:59 amRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
5h 34m1 stop Denver Intl
United Airlines Logo
11:44 am - 10:01 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
9h 17m2 stops San Francisco Denver Intl
$354United Airlines
Sat, Apr 10 - Sat, Apr 17
United Airlines Logo
2:05 pm - 12:33 amRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
11h 28m2 stops Denver Intl San Francisco
United Airlines Logo
9:02 am - 10:01 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
11h 59m2 stops San Francisco Denver Intl
$359United Airlines
Sun, Nov 15 - Mon, Nov 23
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
3:49 pm - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
5h 31m1 stop Denver Intl
$363United Airlines
Sun, Nov 15 - Mon, Nov 23
United Airlines Logo
5:00 am - 12:20 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
8h 20m2 stops Denver Intl San Francisco
United Airlines Logo
3:49 pm - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
5h 31m1 stop Denver Intl
$369United Airlines
Sun, Nov 15 - Mon, Nov 23
United Airlines Logo
5:00 am - 12:20 pmRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
8h 20m2 stops Denver Intl San Francisco
United Airlines Logo
10:40 am - 10:20 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
10h 40m2 stops San Francisco Denver Intl
$440United Airlines
Wed, Dec 23 - Wed, Dec 30
United Airlines Logo
5:00 am - 9:49 amRKS  Rock Springs Sweetwater County-SEA Seattle/Tacoma Intl
5h 49m1 stop Denver Intl
United Airlines Logo
5:00 am - 1:31 pmSEA  Seattle/Tacoma Intl-RKS Rock Springs Sweetwater County
7h 31m1 stop Denver Intl
$445United Airlines
Fri, Nov 13 - Tue, Nov 17
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
$478United 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 with more confidence.

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

Round-trip flights from Rock Springs to Seattle typically range from $328 to $539. The lowest price found in the past 5 days was $348, on United Airlines.

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Key details for Rock Springs to Seattle flights

Cheapest flight

$348
The most popular month to fly with an average 23% increase in travelers.
Round-trip 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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 $348 to $969. That means the highest observed fare was about 3x 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 averaging $61 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • 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.

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

    Yes. Flexible dates can save you up to 42% on flights from Rock Springs to Seattle. Friday is the cheapest departure day at $328 round-trip on average, while Wednesday is the most expensive at $558, a difference of $230.

    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 are flexible, aim for a Friday departure and avoid flying on Wednesday. On this route, Friday flights average $328, about $230 less than Wednesday fares (41% 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.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • 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