What is the cheapest airline that flies from Raleigh-Durham to Seattle/Tacoma Intl?

Delta is the most popular carrier operating from Raleigh-Durham to Seattle/Tacoma Intl

How many flights depart from Raleigh to Seattle on average per day?

The number of flights available between Raleigh and Seattle is 2 per day as of December 2025. The most frequent departure time is 6:00PM, with 58% of daily flights leaving in the evening.

Which layover airport offers the lowest fares from Raleigh to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $267.

What airlines fly to Seattle?

Delta, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Raleigh according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

How many flights depart from Raleigh to Seattle on average per week?

As of December 2025, there are 20 flights per week flying from Raleigh to Seattle. The most common day of the week flights depart is Wed, with 30% of flights taking off on this day.

Which layover airport has the shortest connection time from Raleigh to Seattle?

Chicago (ORD) has the shortest average layover time for this route: 1h 05m.

Which airport is the most popular layover for flights between Raleigh and Seattle?

Charlotte (CLT) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Raleigh to Seattle?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 8h 19m.

When did momondo last update prices for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport is 7 as of December 2025.

How old do you have to be to fly from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$140 Cheap Flights from Raleigh to Seattle in 2025/26

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7:36 am - 10:42 am

RDU

SEA

6h 06mnonstop

6:05 am - 3:57 pm

SEA

RDU

6h 52m1 stop

$209Delta

Fri, Jan 23 - Tue, Jan 27

7:36 pm - 11:21 am

RDU

SEA

18h 45m1 stop

12:26 pm - 6:41 pm

SEA

RDU

27h 15m1 stop

$214Frontier

Thu, Jan 8 - Sun, Jan 11

7:39 pm - 11:09 am

RDU

SEA

18h 30m1 stop

12:34 pm - 6:44 pm

SEA

RDU

27h 10m1 stop

$215Frontier

Thu, Jan 15 - Thu, Jan 22

4:49 pm - 11:15 pm

RDU

SEA

9h 26m1 stop

1:30 pm - 11:40 pm

SEA

RDU

7h 10m1 stop

$219Delta

Fri, Jan 23 - Mon, Feb 2

1:15 pm - 5:51 pm

RDU

SEA

31h 36m2 stops

12:26 pm - 6:41 pm

SEA

RDU

27h 15m1 stop

$227Frontier

Mon, Jan 5 - Sun, Jan 11

7:39 pm - 11:09 am

RDU

SEA

18h 30m1 stop

12:34 pm - 6:29 pm

SEA

RDU

26h 55m2 stops

$233Frontier

Sun, Jan 18 - Thu, Jan 29

7:39 pm - 11:09 am

RDU

SEA

18h 30m1 stop

3:58 pm - 6:44 pm

SEA

RDU

23h 46m1 stop

$236Frontier

Thu, Jan 15 - Sat, Jan 17

7:36 am - 10:42 am

RDU

SEA

6h 06mnonstop

3:59 pm - 11:53 pm

SEA

RDU

4h 54mnonstop

$239Delta

Tue, Jan 13 - Thu, Jan 15

7:36 pm - 1:34 pm

RDU

SEA

20h 58m1 stop

12:26 pm - 6:41 pm

SEA

RDU

27h 15m1 stop

$241Frontier

Fri, Jan 9 - Sun, Jan 11

3:03 pm - 8:56 pm

RDU

SEA

8h 53m1 stop

10:55 am - 11:44 pm

SEA

RDU

9h 49m2 stops

$242United Airlines

Tue, Feb 17 - Tue, Feb 24

Frontier flights from Raleigh to Seattle

Our best Frontier deals on Raleigh to Seattle flight tickets

Frontier

Jan 8

RDU7:36 pmRaleigh-Durham

18h 45m

1 stop

SEA11:21 amSeattle/Tacoma Intl

Jan 11

SEA12:26 pmSeattle/Tacoma Intl

27h 15m

1 stop

RDU6:41 pmRaleigh-Durham

$214

Find similar

Frontier

Jan 15

RDU7:39 pmRaleigh-Durham

18h 30m

1 stop

SEA11:09 amSeattle/Tacoma Intl

Jan 22

SEA12:34 pmSeattle/Tacoma Intl

27h 10m

1 stop

RDU6:44 pmRaleigh-Durham

$215

Find similar

Frontier

Feb 1

RDU7:29 pmRaleigh-Durham

18h 50m

1 stop

SEA11:19 amSeattle/Tacoma Intl

Feb 8

SEA12:34 pmSeattle/Tacoma Intl

27h 10m

1 stop

RDU6:44 pmRaleigh-Durham

$218

Find similar

United Airlines flights from Raleigh to Seattle

Our best United Airlines deals on Raleigh to Seattle flight tickets

United Airlines

Feb 17

RDU3:03 pmRaleigh-Durham

8h 53m

1 stop

SEA8:56 pmSeattle/Tacoma Intl

Feb 24

SEA10:55 amSeattle/Tacoma Intl

9h 49m

2 stops

RDU11:44 pmRaleigh-Durham

$242

Find similar

United Airlines

Jan 15

RDU6:15 amRaleigh-Durham

8h 17m

1 stop

SEA11:32 amSeattle/Tacoma Intl

Jan 20

SEA12:25 pmSeattle/Tacoma Intl

7h 50m

1 stop

RDU11:15 pmRaleigh-Durham

$247

Find similar

United Airlines

Jan 9

RDU6:15 pmRaleigh-Durham

9h 44m

1 stop

SEA12:59 amSeattle/Tacoma Intl

Jan 10

SEA5:00 amSeattle/Tacoma Intl

9h 14m

2 stops

RDU5:14 pmRaleigh-Durham

$248

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Fly from

Fly to

Route

Depart

Return

Price

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 1/23

7:36 am-10:42 am

Nonstop6h 06m

Seattle/Tacoma Intl

Tue 1/27

6:05 am-3:57 pm

1 stop6h 52m

$209

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 1/8

7:36 pm-11:21 am

1 stop18h 45m

Seattle/Tacoma Intl

Sun 1/11

12:26 pm-6:41 pm

1 stop27h 15m

$214

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 1/15

7:39 pm-11:09 am

1 stop18h 30m

Seattle/Tacoma Intl

Thu 1/22

12:34 pm-6:44 pm

1 stop27h 10m

$215

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 1/23

4:49 pm-11:15 pm

1 stop9h 26m

Seattle/Tacoma Intl

Mon 2/2

1:30 pm-11:40 pm

1 stop7h 10m

$219

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Mon 1/5

1:15 pm-5:51 pm

2 stops31h 36m

Seattle/Tacoma Intl

Sun 1/11

12:26 pm-6:41 pm

1 stop27h 15m

$227

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Sun 1/18

7:39 pm-11:09 am

1 stop18h 30m

Seattle/Tacoma Intl

Thu 1/29

12:34 pm-6:29 pm

2 stops26h 55m

$233

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Thu 1/15

7:39 pm-11:09 am

1 stop18h 30m

Seattle/Tacoma Intl

Sat 1/17

3:58 pm-6:44 pm

1 stop23h 46m

$236

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Tue 1/13

7:36 am-10:42 am

Nonstop6h 06m

Seattle/Tacoma Intl

Thu 1/15

3:59 pm-11:53 pm

Nonstop4h 54m

$239

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Fri 1/9

7:36 pm-1:34 pm

1 stop20h 58m

Seattle/Tacoma Intl

Sun 1/11

12:26 pm-6:41 pm

1 stop27h 15m

$241

RaleighSeattle

RDU - SEA

RDUSEA

Raleigh-Durham

Tue 2/17

3:03 pm-8:56 pm

1 stop8h 53m

Seattle/Tacoma Intl

Tue 2/24

10:55 am-11:44 pm

2 stops9h 49m

$242

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Raleigh to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Raleigh to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. If you don’t want to visit Seattle in January, then you should wait until February to fly from Raleigh, when ticket prices are also cheap, with an average price of $313.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Raleigh is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $485. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Raleigh because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $564.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Raleigh at noon is the least expensive time of day to depart. momondo users have found prices as low as $413 when looking at flights departing at noon. Flights to Seattle are more costly in the evening, with an average ticket price of $640. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Raleigh-Durham to Seattle/Tacoma Intl flight route?

Fly from Raleigh-Durham to Seattle/Tacoma Intl for the best Raleigh-Durham - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Raleigh when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Raleigh for as low as $332 on momondo.

What cabin class options are available on Raleigh-Durham to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Raleigh-Durham to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Raleigh to Seattle flights?

You could potentially save up to 14% on your flight if you consider stops on a Raleigh to Seattle flight.

How have Raleigh to Seattle flight prices changed over time?

As of December 2025, prices for Raleigh to Seattle flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Raleigh to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Raleigh to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Raleigh to Seattle (RDU to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Raleigh to Seattle

Best Price Found	$262
Fastest flight time	5h 53m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Raleigh in the past 72 hours is $262. The best round-trip flight deal from Raleigh to Seattle found on momondo in the last 72 hours is $352.

The fastest flight from Raleigh to Seattle takes 5h 53m

Direct flights go from Raleigh to Seattle every day.

There is 1 airport in Seattle. From Raleigh there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

How far is Raleigh-Durham to Seattle/Tacoma Intl by plane?
The straight-line distance from Raleigh-Durham to Seattle/Tacoma Intl is 2360.6 mi. Typically, this will take 5h 53m by plane in normal conditions.
When did momondo last update prices for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport is 7 as of December 2025.
How old do you have to be to fly from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Raleigh to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Raleigh to Seattle is Boeing 737-900, representing 25.27% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 24.18%, Boeing 737-800 Passenger/BBJ2 (winglets) at 18.21%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 17.12%.
What is the most popular airline from Raleigh to Seattle?
momondo data reveals that the most frequently booked airline on the route from Raleigh to Seattle is Alaska Airlines, representing 38% of all bookings. The subsequent popular airlines are Delta at 37%, Hawaiian Airlines at 9%, and American Airlines at 6%.

Best airlines flying from Raleigh to Seattle

Compare and see reviews for airlines that fly from Raleigh to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $151	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
Frontier	PriceFrom $157	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Delta	PriceFrom $199	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Southwest	PriceFrom $214	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $255	Free Cancellation	Rating 8.0 11,475 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $276	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

Alaska Airlines Flights From Raleigh to Seattle
The lowest priced Alaska Airlines flight from Raleigh to Seattle from the last 72 hours was $255. Generally, Alaska Airlines has 1 flight on this route every week with an average price of $448. Alaska Airlines is rated 8.0/10 by our users.
Delta Flights From Raleigh to Seattle
Another popular option for Raleigh to Seattle flights is Delta (7.9/10, 8,007 ratings). Delta flies from Raleigh to Seattle around 5 times per week, with deals starting from $199 round-trip and rising to an average price of around $416.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Centralia

Westport

Kirkland

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Raleigh to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Raleigh to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Raleigh to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Raleigh with this policy.

How can momondo help me find flights from Raleigh to Seattle?

Once you have performed a search for Raleigh to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Raleigh to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Raleigh to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Raleigh to Seattle from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Raleigh to Seattle departing on 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Raleigh to Seattle

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Raleigh-Durham to Seattle/Tacoma Intl flight route?

Fly from Raleigh-Durham to Seattle/Tacoma Intl for the best Raleigh-Durham - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Raleigh-Durham to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Raleigh-Durham to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Raleigh to Seattle flights?

You could potentially save up to 14% on your flight if you consider stops on a Raleigh to Seattle flight.

How have Raleigh to Seattle flight prices changed over time?

As of December 2025, prices for Raleigh to Seattle flights are approximately 8% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Raleigh-Durham to Seattle/Tacoma Intl?

Delta is the most popular carrier operating from Raleigh-Durham to Seattle/Tacoma Intl

What airlines fly to Seattle?

Which airport is the most popular layover for flights between Raleigh and Seattle?

Charlotte (CLT) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Raleigh to Seattle?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $267.

Which layover airport has the shortest travel time from Raleigh to Seattle?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 8h 19m.

Which layover airport has the shortest connection time from Raleigh to Seattle?

Chicago (ORD) has the shortest average layover time for this route: 1h 05m.

How many flights depart from Raleigh to Seattle on average per day?

The number of flights available between Raleigh and Seattle is 2 per day as of December 2025. The most frequent departure time is 6:00PM, with 58% of daily flights leaving in the evening.

How many flights depart from Raleigh to Seattle on average per week?

As of December 2025, there are 20 flights per week flying from Raleigh to Seattle. The most common day of the week flights depart is Wed, with 30% of flights taking off on this day.

When to book flights from Raleigh to Seattle

Cheap Raleigh to Seattle (RDU to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Raleigh to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

How far is Raleigh-Durham to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Raleigh-Durham Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Raleigh to Seattle?

What is the most popular airline from Raleigh to Seattle?

Best airlines flying from Raleigh to Seattle

Compare and see reviews for airlines that fly from Raleigh to Seattle with momondo

Alaska Airlines Flights From Raleigh to Seattle

Delta Flights From Raleigh to Seattle

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Raleigh to Seattle?

Can I find flights from Raleigh to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Raleigh to Seattle?

I’m not ready to book a flight from Raleigh to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington