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$112+ Cheap flights from Raleigh to Seattle (RDU - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SEA
May 6 — May 131
Wed 5/6
Wed 5/13
1 adult, Economy
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Find cheap flights from Raleigh to Seattle with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

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Cheapflights Tip: The best prices from Raleigh-Durham to Seattle/Tacoma Intl are usually found in February or January, booked 65 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Raleigh to Seattle

Cheapest flights from Raleigh to Seattle
Explore the most affordable flight options available from Raleigh to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 6, 2026.

This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:49 pm
RDU
-
SEA
1 stop14h 38m
Frontier
Tue 5/57:50 pm
SEA
-
RDU
1 stop12h 41m
Frontier
Deal found 4/1$210
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:49 pm
RDU
-
SEA
1 stop14h 38m
Frontier
Fri 4/244:20 pm
SEA
-
RDU
1 stop25h 44m
Frontier
Deal found 4/6$211
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:49 pm
RDU
-
SEA
1 stop14h 38m
Frontier
Mon 5/47:12 pm
SEA
-
RDU
2 stops26h 21m
Frontier
Deal found 4/3$212
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:23 pm
RDU
-
SEA
1 stop23h 26m
Frontier
Sun 5/107:50 pm
SEA
-
RDU
2 stops15h 43m
Frontier
Deal found 4/4$214
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:35 pm
RDU
-
SEA
1 stop16h 52m
Frontier
Tue 4/287:12 pm
SEA
-
RDU
1 stop19h 10m
Frontier
Deal found 4/3$216
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:10 am
RDU
-
SEA
2 stops30h 39m
Frontier
Mon 5/187:50 pm
SEA
-
RDU
1 stop13h 38m
Frontier
Deal found 4/3$217
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:49 pm
RDU
-
SEA
1 stop15h 03m
Frontier
Mon 4/277:12 pm
SEA
-
RDU
1 stop20h 32m
Frontier
Deal found 4/6$218
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:31 pm
RDU
-
SEA
2 stops29h 20m
Frontier
Mon 5/47:12 pm
SEA
-
RDU
1 stop14h 16m
Frontier
Deal found 4/6$220
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:23 pm
RDU
-
SEA
1 stop23h 26m
Frontier
Fri 5/157:50 pm
SEA
-
RDU
1 stop13h 38m
Frontier
Deal found 4/6$221
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:35 pm
RDU
-
SEA
1 stop16h 52m
Frontier
Tue 5/57:50 pm
SEA
-
RDU
2 stops39h 37m
Frontier
Deal found 4/3$222
This Expedia deal was found by Cheapflights users on 4/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:49 pm
RDU
-
SEA
1 stop14h 38m
Frontier
Wed 4/297:12 pm
SEA
-
RDU
1 stop22h 52m
Frontier
Deal found 4/3$225

Find flight deals from Raleigh to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) 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 April 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$210
(Frontier)

One-way from

$112
(CheapOair)

Popular in

June

Cheapest in

February

Average price

$340

Good round-trip deal

$399 or less

Good one-way deal

$248 or less
Provider with most accurate pricing for Raleigh-Durham-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Seattle/Tacoma Intl flights.
Search Deals
From Raleigh-Durham to Seattle/Tacoma Intl
Search Deals
One-way flight from Raleigh-Durham to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Raleigh-Durham to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Raleigh-Durham to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh 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 2,558,603 searches. Data last updated April 6, 2026.
Use the filters below to find and compare flights from Raleigh to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 5/1

6:15 pm-11:30 pm

1 stop8h 15m

Seattle/Tacoma Intl

Tue 5/5

11:40 am-12:10 am

2 stops9h 30m

$234

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 4/24

7:45 pm-12:05 am

1 stop7h 20m

Seattle/Tacoma Intl

Mon 4/27

11:55 pm-12:50 pm

2 stops9h 55m

$234

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Tue 5/5

7:08 pm-10:03 pm

Nonstop5h 55m

Seattle/Tacoma Intl

Sat 5/9

9:56 pm-6:10 am

Nonstop5h 14m

$317

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 5/29

6:15 pm-11:30 pm

1 stop8h 15m

Seattle/Tacoma Intl

Wed 6/3

11:45 pm-12:45 pm

2 stops10h 00m

$362

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 5/21

4:25 pm-12:55 am

2 stops11h 30m

Seattle/Tacoma Intl

Tue 6/2

11:45 pm-12:50 pm

2 stops10h 05m

$389

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 6/11

4:05 pm-11:05 pm

2 stops10h 00m

Seattle/Tacoma Intl

Wed 6/17

11:10 am-11:25 pm

1 stop9h 15m

$397

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Sat 5/30

3:30 pm-9:45 pm

1 stop9h 15m

Seattle/Tacoma Intl

Wed 6/10

3:40 pm-11:42 pm

Nonstop5h 02m

$407

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 5/15

4:25 pm-11:30 pm

2 stops10h 05m

Seattle/Tacoma Intl

Tue 5/19

9:20 am-9:40 pm

2 stops9h 20m

$407

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Mon 4/20

4:25 pm-12:55 am

2 stops11h 30m

Seattle/Tacoma Intl

Tue 4/28

11:45 pm-12:50 pm

2 stops10h 05m

$413

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 6/11

1:15 pm-1:40 am

1 stop15h 25m

Seattle/Tacoma Intl

Fri 6/12

11:05 pm-10:35 am

1 stop8h 30m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Raleigh 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 Raleigh to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Raleigh-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Raleigh-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 Raleigh to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Raleigh with our price prediction graph.
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.

Cheapflights Insights

Everything you need to know about your flight from Raleigh to Seattle

How far ahead should I book a flight from Raleigh to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Seattle. Price data was last updated on April 3, 2026.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Raleigh to Seattle?

Currently, February is the cheapest month in which you can book a flight from Raleigh to Seattle (average of $125). Flying from Raleigh to Seattle in June is currently the most expensive (average of $256). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RDU to SEA?

Find hourly flight availability from Raleigh to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 6, 2026.

When flying from Raleigh to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Raleigh to Seattle?

The best insider tips for Raleigh to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Seattle trip
Our travel experts
John Walton

John Walton

Expert on RDU

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 April 6, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Raleigh to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,180 reviews
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,383 reviews
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,838 reviews
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,546 reviews
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Frontier
5.7
Fair
3,001 reviews
Alaska Airlines
7.9
Good
12,180 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

7.9

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

Related info for your journey

Find useful and relevant information for your journey from Raleigh to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Raleigh to Seattle?

    If you book a flight from Raleigh to Seattle, you will be flying from Raleigh-Durham to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Raleigh-Durham (RDU) take 5h 43m for a nonstop flight. There are 5 flights from Raleigh-Durham to Seattle per day from 8 airlines.

  • How popular is this Raleigh to Seattle flight route?

    The Raleigh-Durham to Seattle/Tacoma Intl flight path was viewed by 54 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Raleigh to Seattle?

    Departing from Raleigh to Seattle will take you 5h 55m. Raleigh and Seattle are separated by a distance of 2347 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Raleigh to Seattle round-trip?

    Currently priced at $135, Frontier will fly you from Raleigh to Seattle and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Sun Country Air - these airlines can fly you to your destination from $138 and $144, respectively. Users have found that Frontier is 62% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Raleigh to Seattle one-way?

    The cheapest airlines for a one-way flight from Raleigh to Seattle are Frontier ($99), United Airlines ($128), and Delta ($128).

  • What are the most reliable airlines from Raleigh to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Raleigh to Seattle on time: Alaska Airlines (74%), Delta (74%), Korean Air (74%).

  • What are the cheapest flights from Raleigh to Seattle?

    Looking at all options, your cheapest flight can be booked for $173. While the most popular route (Raleigh-Durham - Seattle/Tacoma Intl) can be booked for $240 on average, our data indicates $976 when flying from Raleigh to Seattle.

  • Can I find deals for flights from Raleigh to Seattle that include hotel bookings?

    Yes. In addition to deals on Raleigh to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to Seattle.

  • Can I find deals for business class flights from Raleigh to Seattle?

    Yes. Cheapflights offers flight deals from Raleigh to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Raleigh to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Raleigh to Seattle (average of $125). Flying from Raleigh to Seattle in June is currently the most expensive (average of $256). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Raleigh to Seattle

Discover the top 8 airlines that operate flights from Raleigh 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 2,558,603 searches. Data last updated April 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$135Average$274FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$342FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$144Average$275FlexibilityNo cancel feeOn-time83%
DeltaCheapest$164Average$390FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$202Average$417FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$214Average$397FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$236Average$372FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$360FlexibilityNo cancel feeOn-time71%

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