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$138+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SEA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 Tuesday

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 junio 12, 2025.

Round-trip from

$245
(United Airlines)

One-way from

$138
(Sun Country Air)

Popular in

July

Cheapest in

January

Average price

$487

Good round-trip deal

$386 or less

Good one-way deal

$231 or less
From Raleigh-Durham to Seattle/Tacoma Intl
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One-way flight from Raleigh-Durham to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 16% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Raleigh-Durham to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Raleigh-Durham to Seattle/Tacoma Intl.
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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 junio 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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.
mié. 9/107:00 amRDU - SEA
1 stop9h 28mUnited Airlines
sáb. 9/205:07 amSEA - RDU
1 stop7h 19mUnited Airlines
Deal found 6/11$245
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/206:00 pmRDU - SEA
1 stop8h 35mSouthwest
lun. 8/259:10 pmSEA - RDU
1 stop9h 45mSouthwest
Deal found 6/10$246
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/177:30 amRDU - SEA
Nonstop6h 14mDelta
sáb. 9/203:50 pmSEA - RDU
Nonstop5h 04mDelta
Deal found 6/10$257
This Frontier deal was found by Cheapflights users on 6/9. 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.
lun. 7/285:23 pmRDU - SEA
1 stop10h 11mFrontier
vie. 8/13:11 pmSEA - RDU
1 stop12h 24mFrontier
Deal found 6/9$259
This Priceline deal was found by Cheapflights users on 6/11. 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.
vie. 7/46:11 pmRDU - SEA
1 stop7h 36mMultiple Airlines
mié. 7/95:30 pmSEA - RDU
2 stops11h 45mMultiple Airlines
Deal found 6/11$264
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/912:09 pmRDU - SEA
1 stop10h 50mAmerican Airlines
mié. 9/176:05 amSEA - RDU
1 stop10h 56mAmerican Airlines
Deal found 6/12$266
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/46:11 pmRDU - SEA
1 stop7h 36mSun Country Air
jue. 7/1011:59 pmSEA - RDU
1 stop14h 12mSun Country Air
Deal found 6/10$275
This Hawaiian Airlines deal was found by Cheapflights users on 6/9. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/196:01 pmRDU - SEA
Nonstop5h 55mHawaiian Airlines
dom. 8/249:48 pmSEA - RDU
Nonstop5h 12mHawaiian Airlines
Deal found 6/9$277
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/227:36 amRDU - SEA
Nonstop5h 46mAlaska Airlines
vie. 8/229:48 pmSEA - RDU
Nonstop5h 12mAlaska Airlines
Deal found 6/10$297
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/810:45 amRDU - SEA
3 stops32h 40mSpirit Airlines
jue. 7/105:30 pmSEA - RDU
2 stops19h 42mSpirit Airlines
Deal found 6/11$315

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 junio 12, 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

mié. 9/10

7:00 am-1:28 pm

1 stop9h 28m

Seattle/Tacoma Intl

sáb. 9/20

5:07 am-3:26 pm

1 stop7h 19m

$245

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

mié. 8/20

6:00 pm-11:35 pm

1 stop8h 35m

Seattle/Tacoma Intl

lun. 8/25

9:10 pm-9:55 am

1 stop9h 45m

$246

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

mar. 9/9

7:11 am-10:03 am

Nonstop5h 52m

Seattle/Tacoma Intl

mié. 9/17

3:50 pm-11:54 pm

Nonstop5h 04m

$257

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

lun. 7/28

5:23 pm-12:34 am

1 stop10h 11m

Seattle/Tacoma Intl

vie. 8/1

3:11 pm-6:35 am

1 stop12h 24m

$259

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

vie. 7/4

6:11 pm-10:47 pm

1 stop7h 36m

Seattle/Tacoma Intl

mié. 7/9

5:30 pm-8:15 am

2 stops11h 45m

$264

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

mar. 9/9

12:09 pm-7:59 pm

1 stop10h 50m

Seattle/Tacoma Intl

mié. 9/17

6:05 am-8:01 pm

1 stop10h 56m

$266

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

vie. 7/4

6:11 pm-10:47 pm

1 stop7h 36m

Seattle/Tacoma Intl

jue. 7/10

11:59 pm-5:11 pm

1 stop14h 12m

$275

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

mar. 8/19

7:36 am-10:26 am

Nonstop5h 50m

Seattle/Tacoma Intl

vie. 8/22

9:48 pm-6:00 am

Nonstop5h 12m

$277

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

mar. 7/8

10:45 am-4:25 pm

3 stops32h 40m

Seattle/Tacoma Intl

jue. 7/10

5:30 pm-4:12 pm

2 stops19h 42m

$315

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

vie. 7/4

6:01 pm-8:56 pm

Nonstop5h 55m

Seattle/Tacoma Intl

mié. 7/9

9:55 pm-6:00 am

Nonstop5h 05m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 20 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 June 9, 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 July is currently the most expensive (average of $391). 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 junio 12, 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 in the evening, which can drop the price by up to 47% 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 June 8, 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 junio 12, 2025.

The most flights from RDU to SEA are scheduled on a Thursday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 junio 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Raleigh to Seattle to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 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 39 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Currently priced at $245, United Airlines will fly you from Raleigh to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $246 and $257, respectively. Users have found that United Airlines is 36% 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 Sun Country Air ($138), American Airlines ($139), and Southwest ($144).

  • 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 (90%), Korean Air (90%), Finnair (86%).

  • What are the cheapest flights from Raleigh to Seattle?

    Looking at all options, your cheapest flight can be booked for $163. While the most popular route (Raleigh-Durham - Seattle/Tacoma Intl) can be booked for $215 on average our data indicates $1,413 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 July is currently the most expensive (average of $391). 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 Raleigh?

Book flights to Raleigh if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Raleigh to Seattle

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$125Average$228FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$153Average$425FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$168Average$371FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$188Average$380FlexibilityNo cancel feeOn-time69%
DeltaCheapest$235Average$413FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$256Average$451FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$276Average$357FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$303Average$446FlexibilityNo cancel feeOn-time63%

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