Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $560, Delta is the most expensive airline flying into Seattle. The cheapest airline flying to Seattle is Alaska Airlines.

Which other airlines fly to Seattle?

Along with Delta, you can also fly to Seattle with Alaska Airlines, Alaska Airlines, American Airlines and Southwest.

How much is a flight to Seattle with Delta?

On average, Delta flights to Seattle cost $668 for one-way and $560 return.

Which airport do Delta flights to Seattle fly into?

You’ll fly into Seattle/Tacoma Airport when flying to Seattle with Delta.

Are there any other airlines in SkyTeam that fly to Seattle?

Unfortunately, there are no other airlines in SkyTeam that fly to Seattle.

Delta flights to Seattle (SEA) from $79

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Flight Deals

Cheap Delta Flight Deals to Seattle

Round-trip

One-way

Last minute

Direct

Thu, Nov 12 - Mon, Nov 16

7:05 am - 10:05 amLAX Los Angeles-SEA Seattle/Tacoma Intl

3h 00mnonstop

7:15 am - 10:10 amSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 55mnonstop

$137Delta

Fri, Dec 4 - Wed, Dec 9

7:20 am - 10:38 amSAN San Diego-SEA Seattle/Tacoma Intl

3h 18mnonstop

9:55 am - 12:56 pmSEA Seattle/Tacoma Intl-SAN San Diego

3h 01mnonstop

$157Delta

Thu, Nov 5 - Mon, Nov 9

6:20 am - 8:41 amSFO San Francisco-SEA Seattle/Tacoma Intl

2h 21mnonstop

9:22 pm - 11:33 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 11mnonstop

$157Delta

Thu, Nov 5 - Mon, Nov 9

11:02 am - 2:18 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 16mnonstop

7:15 am - 10:07 amSEA Seattle/Tacoma Intl-SAN San Diego

2h 52mnonstop

$158Delta

Thu, Nov 5 - Mon, Nov 9

6:20 am - 8:41 amSFO San Francisco-SEA Seattle/Tacoma Intl

2h 21mnonstop

9:22 pm - 11:33 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 11mnonstop

$158Delta

Wed, Nov 11 - Sun, Nov 15

7:10 pm - 10:04 pmLAX Los Angeles-SEA Seattle/Tacoma Intl

2h 54mnonstop

9:20 pm - 11:59 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 39mnonstop

$167Delta

Wed, Dec 16 - Thu, Dec 31

3:52 pm - 7:05 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 13mnonstop

7:15 am - 10:16 amSEA Seattle/Tacoma Intl-SAN San Diego

3h 01mnonstop

$177Delta

Mon, Dec 21 - Thu, Dec 31

6:10 am - 8:33 amSFO San Francisco-SEA Seattle/Tacoma Intl

2h 23mnonstop

7:15 am - 9:43 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 28mnonstop

$177Delta

Sun, Dec 6 - Mon, Dec 14

7:20 am - 10:38 amSAN San Diego-SEA Seattle/Tacoma Intl

3h 18mnonstop

11:55 am - 2:51 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 56mnonstop

$182Delta

Wed, Nov 18 - Tue, Dec 1

2:00 pm - 4:51 pmLAX Los Angeles-SEA Seattle/Tacoma Intl

2h 51mnonstop

9:20 pm - 11:59 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 39mnonstop

$182Delta

Tue, Oct 20 - Wed, Nov 18

8:58 pm - 11:13 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 15mnonstop

9:22 pm - 11:33 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 11mnonstop

$375Delta

Fri, Oct 16 - Fri, Nov 27

6:35 am - 9:20 amORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 45mnonstop

5:55 pm - 11:59 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mnonstop

$412Delta

Fri, Oct 16 - Fri, Nov 27

6:20 am - 10:59 amORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

6h 39m1 stop Minneapolis St Paul

5:55 pm - 11:59 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mnonstop

$422Delta

Sat, Oct 17 - Thu, Nov 5

3:59 pm - 7:02 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 03mnonstop

9:59 am - 12:58 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 59mnonstop

$427Delta

Sat, Oct 17 - Tue, Oct 27

6:40 am - 10:00 amPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 20mnonstop

6:20 pm - 9:15 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 55mnonstop

$432Delta

Fri, Oct 16 - Fri, Nov 27

7:35 am - 12:52 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

7h 17m1 stop Salt Lake City

5:55 pm - 11:59 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mnonstop

$432Delta

Tue, Oct 20 - Wed, Oct 28

11:50 am - 4:58 pmEWR Newark-SEA Seattle/Tacoma Intl

8h 08m1 stop Minneapolis St Paul

10:35 pm - 9:23 amSEA Seattle/Tacoma Intl-EWR Newark

7h 48m1 stop Atlanta Hartsfield-Jackson

$451Delta

Tue, Oct 20 - Tue, Oct 27

8:00 am - 11:20 amPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 20mnonstop

3:35 pm - 6:35 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

3h 00mnonstop

$452Delta

Sat, Oct 17 - Thu, Nov 5

3:59 pm - 7:02 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 03mnonstop

7:59 pm - 10:51 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 52mnonstop

$454Delta

Sun, Oct 18 - Sat, Oct 24

6:40 am - 10:00 amPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 20mnonstop

6:20 pm - 9:15 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 55mnonstop

$455Delta

Useful Info

KAYAK's insights & trends for Seattle flights with Delta

Get data-powered insights and trends into Delta flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly with Delta to Seattle?

The cheapest month for Delta flights to Seattle is January, where tickets cost $247 (return) on average. On the other hand, the most expensive months to fly this route on Delta are July and June, where the average cost of round-trip tickets is $406 and $390 respectively.

How far in advance should I book Delta flights to Seattle?

For the absolute cheapest price on Delta, our data suggests you should book 4 weeks before departure.

What is the cheapest flight to Seattle with Delta?

The cheapest airline ticket to Seattle from the United States with Delta in the last 5 days was $79 one-way, and $157 round-trip on the route from San Diego to Seattle. The most popular route is from San Diego to Seattle and the cheapest ticket found on this route in the last 5 days was $157 return.

How many direct flights does Delta operate to Seattle every week?

Each week there are around 1,193 direct flights from within the United States to Seattle. The most common day for departures is Sunday, with 18% of flights taking off on this day.

What is the cheapest day to fly to Seattle?

Based on KAYAK data, the cheapest day to fly to Seattle is Thursday where tickets can be as cheap as $505. On the other hand, the most expensive day to fly is Monday, where prices are $600 on average.

What is the cheapest time of day to fly to Seattle with Delta?

The cheapest time of day to fly to Seattle with Delta is generally in the afternoon, when flights cost $468 on average.

Low season	January
High season	June
Cheapest flight	$79
Average price round-trip	$578
Good deal round-trip	$492
Good deal one-way	$895

Best time to beat the crowds with an average 28% drop in price.

Most popular time to fly with an average 19% increase in price.

Flight from San Diego to Seattle

(avg. price over the last 2 weeks)

or less

When to book flights with Delta to Seattle

Average price per month

Flight prices as travel date approaches

Is Delta cheaper than other airlines flying to Seattle?
With an average return price of $560, Delta is the most expensive airline flying into Seattle. The cheapest airline flying to Seattle is Alaska Airlines.
Which other airlines fly to Seattle?
Along with Delta, you can also fly to Seattle with Alaska Airlines, Alaska Airlines, American Airlines and Southwest.
How much is a flight to Seattle with Delta?
On average, Delta flights to Seattle cost $668 for one-way and $560 return.
Which airport do Delta flights to Seattle fly into?
You’ll fly into Seattle/Tacoma Airport when flying to Seattle with Delta.
Are there any other airlines in SkyTeam that fly to Seattle?
Unfortunately, there are no other airlines in SkyTeam that fly to Seattle.

The cheapest flight to Seattle with Delta found on KAYAK in the last 2 weeks departed from Palm Springs and cost $157.
If you’re intending to fly with Delta, book your flight to Seattle at least 2 weeks before departure to ensure a below-average price.
High season for flights to Seattle with Delta is June and prices are highest at this time. The cheapest month to fly is January.

7.8

Good8,651 verified ratings

7.8Entertainment

7.8Comfort

7.2Food

8.1Boarding

8.5Crew

10.0 Wonderful

Hartaj, Oct 2026

Another pleasant experience flying Delta! Boarding was easy and efficient. The gate area was clean and uncrowded, and the gate agent was friendly, courteous, and professional. The flight itself went like clockwork. We experienced a slight delay, but that appeared to be related to operations at LaGuardia rather than Delta. Once underway, the flight was smooth, and the landing was gentle and uneventful. The flight attendants were equally courteous, attentive, and professional throughout the journey. Overall, a very pleasant experience. Thank you, Delta, and well done to the entire crew! 🙏🏽💗

10.0 Wonderful

Mark, Oct 2026

Requested an aisle seat at the gate and got it. The staff so friendly

2.0 Poor

Gene, Oct 2026

Aircraft without problems that leave on time, not 2 hours late with last minute gate changes across the terminal

10.0 Wonderful

Christopher, Oct 2026

The baseline is to have everything happen as expected. That is what happened with the small exception that climate control in the aircraft sss not turned on when boarding started making the aircraft very hot. All in all great experience!

10.0 Wonderful

Caroline, Oct 2026

On time, quick boarding, so nice of them to honor active and retired military with early boarding. Attendants were nice . Plane was clean. A bit crowded like all flights.

4.0 Mediocre

Alex, Oct 2026

My bag was open when I got to Portland and all my clothes were wet and my parking pass was wet

10.0 Wonderful

Marcia, Oct 2026

I liked one of the movies ( which I'm not a movie person" but this was so funny. I had to keep my laughter out loud to a muffle.! I felt too squished in my window seat and the man next to me was not big and bulky or heavy. I like the option of only two seats together. It made it much better for bathroom breaks.

6.0 Okay

Anonymous, Oct 2026

Crew members were nice and professional. TV, you have to press very hard on the screen to get it to respond and WiFi didn’t work. Overall okay flight

2.0 Poor

Anonymous, Oct 2026

My seat wouldn’t recline

8.0 Very good

Maria Katrina, Oct 2026

My experience was very good. Everything was excellent except for the food. The food was mediocre. Not alot of options and the flavor was okay.

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Cheap Delta Flight Deals to Seattle

KAYAK's insights & trends for Seattle flights with Delta

What is the cheapest month to fly with Delta to Seattle?

How far in advance should I book Delta flights to Seattle?

What is the cheapest flight to Seattle with Delta?

How many direct flights does Delta operate to Seattle every week?

What is the cheapest day to fly to Seattle?

What is the cheapest time of day to fly to Seattle with Delta?

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