Seattle

$158+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SEA
Aug 21 — Aug 281
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Cheapflights Tip: The best prices from Raleigh-Durham to Seattle/Tacoma Intl are usually found in January or February, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 August 16, 2025.

Round-trip from

$206
(Priceline)

One-way from

$158
(CheapOair)

Popular in

June

Cheapest in

January

Average price

$412

Good round-trip deal

$347 or less

Good one-way deal

$183 or less
From Raleigh-Durham to Seattle/Tacoma Intl
One-way flight from Raleigh-Durham to Seattle/Tacoma Intl
Highest demand for flights based on searches. 15% potential increase in price ($70 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Raleigh-Durham to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Raleigh-Durham to Seattle/Tacoma Intl.

Find 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 August 16, 2025.

This Priceline deal was found by Cheapflights users on 8/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:23 pmRDU - SEA
1 stop10h 07mFrontier
Fri 9/196:12 amSEA - RDU
1 stop7h 16mFrontier
Deal found 8/13$206
This Frontier deal was found by Cheapflights users on 8/14. 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 9/195:23 pmRDU - SEA
1 stop10h 07mFrontier
Sun 9/218:35 pmSEA - RDU
2 stops20h 55mFrontier
Deal found 8/14$207
This Frontier deal was found by Cheapflights users on 8/15. 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 9/56:22 amRDU - SEA
2 stops14h 11mFrontier
Fri 9/126:12 amSEA - RDU
1 stop7h 16mFrontier
Deal found 8/15$213
This Priceline deal was found by Cheapflights users on 8/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:23 pmRDU - SEA
1 stop10h 07mFrontier
Thu 9/256:12 amSEA - RDU
1 stop7h 26mFrontier
Deal found 8/13$214
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:23 pmRDU - SEA
1 stop10h 07mFrontier
Thu 9/116:12 amSEA - RDU
1 stop7h 26mFrontier
Deal found 8/15$215
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:23 pmRDU - SEA
1 stop10h 07mFrontier
Sun 10/56:12 amSEA - RDU
1 stop8h 45mFrontier
Deal found 8/14$217
This CheapOair deal was found by Cheapflights users on 8/15. 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.
Thu 11/65:21 pmRDU - SEA
1 stop21h 52mFrontier
Mon 11/1011:43 amSEA - RDU
2 stops25h 53mFrontier
Deal found 8/15$218
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:27 pmRDU - SEA
1 stop19h 07mFrontier
Fri 9/56:12 amSEA - RDU
1 stop7h 16mFrontier
Deal found 8/16$221
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/3011:35 amRDU - SEA
1 stop9h 56mUnited Airlines
Tue 10/711:40 pmSEA - RDU
1 stop7h 46mUnited Airlines
Deal found 8/14$222
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:23 pmRDU - SEA
1 stop10h 07mFrontier
Fri 10/36:12 amSEA - RDU
1 stop7h 16mFrontier
Deal found 8/15$227
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:39 pmRDU - SEA
1 stop21h 28mFrontier
Sun 10/268:43 pmSEA - RDU
1 stop17h 01mFrontier
Deal found 8/15$232

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 August 16, 2025.
Use the filters below to find and compare flights from Raleigh to Seattle that are best for you.

Fly from

Raleigh

Fly to

Seattle

Route

Depart

Return

Price

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 9/19

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Sun 9/21

8:35 pm-8:30 pm

2 stops20h 55m

$207

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Mon 9/22

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Thu 9/25

8:31 pm-8:35 pm

2 stops21h 04m

$207

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 10/3

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Sun 10/5

1:22 pm-9:53 am

2 stops17h 31m

$213

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 9/5

6:22 am-5:33 pm

2 stops14h 11m

Seattle/Tacoma Intl

Fri 9/12

6:12 am-4:28 pm

1 stop7h 16m

$213

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 9/26

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Sun 10/5

1:22 pm-9:53 am

2 stops17h 31m

$213

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 9/4

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Thu 9/11

6:12 am-4:38 pm

1 stop7h 26m

$215

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 9/5

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Thu 9/11

6:12 am-4:38 pm

1 stop7h 26m

$215

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 9/4

5:23 pm-12:30 am

1 stop10h 07m

Seattle/Tacoma Intl

Mon 9/8

1:49 pm-8:37 pm

2 stops27h 48m

$218

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 11/6

5:21 pm-12:13 pm

1 stop21h 52m

Seattle/Tacoma Intl

Mon 11/10

11:43 am-4:36 pm

2 stops25h 53m

$218

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 11/6

7:05 pm-6:32 pm

2 stops50h 27m

Seattle/Tacoma Intl

Thu 11/13

12:58 pm-4:36 pm

1 stop24h 38m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 17 results
1
2

The best insider tips for Raleigh to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Seattle trip
Airports
RDU

RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.

Read more about RDUby John Walton
SEA

Take the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes under 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
John Walton

John Walton

Expert on RDU

John Walton

John Walton

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

Brandon Schultz

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

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 August 8, 2025.

Booking 37 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, January is the cheapest month in which you can book a flight from Raleigh to Seattle (average of $238). Flying from Raleigh to Seattle in June is currently the most expensive (average of $389). 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 August 16, 2025.

When flying from Raleigh to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 19% versus a flight in the afternoon.

What is the cheapest day to fly from Raleigh to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Seattle. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Raleigh to Seattle flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Raleigh to Seattle

Explore weekly flight availability from Raleigh to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 16, 2025.

The most flights from RDU to SEA are scheduled on a Friday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

What’s the top layover airport for flights from Raleigh to Seattle?

Share of 1-stop round-trip flights from Raleigh to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 80% of 1-stop itineraries from Raleigh to Seattle on Cheapflights.

What’s the cheapest layover airport for flights from Raleigh to Seattle?

Average round-trip fare for 1-stop flights from Raleigh to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $283.

What’s the fastest layover option from Raleigh to Seattle?

Shortest average travel time for 1-stop one-way flights from Raleigh to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 8h 25m.

Which airport typically offers the quickest layover for flights from Raleigh to Seattle?

Average layover duration for 1-stop one-way flights from Raleigh to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 2h 11m.

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 August 16, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian 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.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
8.0
Very good

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 46m for a nonstop flight. There are 6 flights from Raleigh-Durham to Seattle per day from 7 airlines.

  • How popular is this Raleigh to Seattle flight route?

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

    Currently priced at $128, 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 United Airlines - these airlines can fly you to your destination from $153 and $178, respectively. Users have found that Frontier is 66% 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 ($158), Alaska Airlines ($159), and Sun Country Air ($160).

  • 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: Delta (97%), Korean Air (97%), Finnair (68%).

  • What are the cheapest flights from Raleigh to Seattle?

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Raleigh-Durham - Seattle/Tacoma Intl) can be booked for $229 on average our data indicates $916 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, January is the cheapest month in which you can book a flight from Raleigh to Seattle (average of $238). Flying from Raleigh to Seattle in June is currently the most expensive (average of $389). 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
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Raleigh to Seattle

Discover the top 7 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$259FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$153Average$413FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$178Average$373FlexibilityNo cancel feeOn-time69%
DeltaCheapest$237Average$415FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$255Average$397FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$257Average$447FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$276Average$355FlexibilityNo cancel feeOn-time71%

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