$363+ Cheap flights from Rock Springs to Seattle (RKS - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — SEA
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Rock Springs to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Rock Springs to Seattle
Cheapest
Best
Last-minute
Cheapest flights from Rock Springs to SeattleExplore the most affordable flight options available from Rock Springs to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Rock Springs to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:00 am -
1 stop5h 47m
Mon 11/233:49 pm -
1 stop5h 31m
Deal found 10/31![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:00 am -
1 stop5h 49m
Wed 12/305:00 am -
1 stop7h 31m
Deal found 10/31![United Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:23 pm -
1 stop7h 56m
Tue 11/173:49 pm -
1 stop5h 31m
Deal found 10/30![United Airlines logo]()
$478
Best flights from Rock Springs to SeattleDiscover carefully curated flight deals from Rock Springs to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Rock Springs to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:00 am -
1 stop5h 47m
Mon 11/233:49 pm -
1 stop5h 31m
Deal found 10/31![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:00 am -
2 stops17h 59m
Wed 12/305:00 am -
2 stops31h 31m
Deal found 10/31![United Airlines logo]()
$562
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:00 am -
2 stops15h 37m
Fri 11/205:23 pm -
2 stops27h 57m
Deal found 11/1![United Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/282:18 pm -
1 stop8h 07m
Thu 12/315:00 am -
1 stop7h 31m
Deal found 10/31![United Airlines logo]()
$812
Last-minute flights from Rock Springs to SeattleDiscover last-minute flight deals from Rock Springs to Seattle. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Rock Springs to Seattle. Data last updated November 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/132:23 pm -
1 stop7h 56m
Tue 11/173:49 pm -
1 stop5h 31m
Deal found 10/30![United Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:00 am -
1 stop5h 47m
Mon 11/233:49 pm -
1 stop5h 31m
Deal found 10/31![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:00 am -
1 stop5h 49m
Wed 12/305:00 am -
1 stop7h 31m
Deal found 10/31![United Airlines logo]()
$445
Find flight deals from Rock Springs to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Rock Springs (RKS) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 4, 2026.
Most accurate provider | eDreams 2 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $363 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Rock Springs to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Rock Springs to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Rock SpringsSeattle
RKS Rock Springs Sweetwater County - SEA Seattle/Tacoma Intl
RKSSEA
Rock Springs Sweetwater County
Sun 11/15
5:00 am-9:47 am
1 stop5h 47m
Seattle/Tacoma Intl
Mon 11/23
3:49 pm-10:20 pm
1 stop5h 31m
$363
Rock SpringsSeattle
RKS Rock Springs Sweetwater County - SEA Seattle/Tacoma Intl
RKSSEA
Rock Springs Sweetwater County
Wed 12/23
5:00 am-9:59 pm
2 stops17h 59m
Seattle/Tacoma Intl
Wed 12/30
5:00 am-1:31 pm
2 stops31h 31m
$562
Rock SpringsSeattle
RKS Rock Springs Sweetwater County - SEA Seattle/Tacoma Intl
RKSSEA
Rock Springs Sweetwater County
Mon 11/16
5:00 am-7:37 pm
2 stops15h 37m
Seattle/Tacoma Intl
Fri 11/20
5:23 pm-10:20 pm
2 stops27h 57m
$711
Rock SpringsSeattle
RKS Rock Springs Sweetwater County - SEA Seattle/Tacoma Intl
RKSSEA
Rock Springs Sweetwater County
Mon 12/28
2:18 pm-9:25 pm
1 stop8h 07m
Seattle/Tacoma Intl
Thu 12/31
5:00 am-1:31 pm
1 stop7h 31m
$812
Sorted by cheapest first
Compare providers for flights from Rock Springs to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rock Springs to Seattle in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Rock Springs-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rock Springs-Seattle flight deals on Cheapflights vs. eDreams 90-95% of the time. Price accuracy is based on data collected from Rock Springs-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rock Springs-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rock Springs-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Rock Springs to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Rock Springs with our price prediction graph.
RKS-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated November 4, 2026.
Read through reviews of airlines operating flights from Rock Springs to Seattle, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Overall
7.3
Food
6.7
Boarding
7.7
Crew
8.1
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Rock Springs to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
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Rock Springs and Seattle flights
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Top airline flying from Rock Springs to Seattle
Discover the top airline that operate flights from Rock Springs to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$413 | FlexibilityNo cancel fee | On-time69% |