Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $595, 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 $595 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

Sat, Oct 31 - Sat, Oct 31

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

2h 21mnonstop

9:35 pm - 11:56 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 21mnonstop

$129Delta

Thu, Oct 29 - Wed, Nov 4

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

2h 21mnonstop

7:16 am - 9:38 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 22mnonstop

$133Delta

Sat, Oct 31 - Sun, Nov 1

2:15 pm - 4:37 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 22mnonstop

7:16 am - 9:38 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 22mnonstop

$134Delta

Sat, Dec 19 - Sun, Jan 3

6:45 pm - 10:00 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 15mnonstop

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

3h 01mnonstop

$137Delta

Fri, Nov 27 - Mon, Nov 30

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

3h 00mnonstop

8:15 pm - 11:04 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 49mnonstop

$137Delta

Thu, Oct 29 - Sun, Nov 1

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

2h 21mnonstop

7:16 am - 9:38 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 22mnonstop

$137Delta

Wed, Dec 23 - Tue, Dec 29

6:45 pm - 10:00 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 15mnonstop

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

3h 01mnonstop

$141Delta

Thu, Nov 5 - Thu, Nov 12

1:53 pm - 5:00 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 07mnonstop

12:00 pm - 2:58 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 58mnonstop

$147Delta

Wed, Dec 16 - Fri, Jan 8

9:40 am - 12:39 pmLAX Los Angeles-SEA Seattle/Tacoma Intl

2h 59mnonstop

12:00 pm - 2:50 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 50mnonstop

$147Delta

Fri, Oct 30 - Sat, Oct 31

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

2h 21mnonstop

9:35 pm - 11:56 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 21mnonstop

$149Delta

Tue, Oct 13 - Tue, Oct 27

11:14 am - 2:35 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 21mnonstop

12:00 pm - 3:04 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

3h 04mnonstop

$312Delta

Mon, Oct 12 - Wed, Nov 11

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

3h 20mnonstop

8:00 pm - 11:56 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 56mnonstop

$335Delta

Tue, Oct 13 - Tue, Oct 27

6:42 pm - 8:48 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 06mnonstop

8:00 pm - 11:55 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 55mnonstop

$352Delta

Tue, Oct 13 - Tue, Oct 27

11:14 am - 2:35 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 21mnonstop

12:00 pm - 3:04 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

3h 04mnonstop

$362Delta

Wed, Oct 14 - Fri, Nov 13

7:35 pm - 10:56 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 21mnonstop

8:00 pm - 11:56 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 56mnonstop

$382Delta

Sun, Oct 11 - Tue, Nov 3

11:14 am - 2:35 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 21mnonstop

6:20 pm - 10:15 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 55mnonstop

$410Delta

Wed, Oct 14 - Mon, Nov 2

5:30 pm - 8:16 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 46mnonstop

5:30 pm - 11:34 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mnonstop

$412Delta

Thu, Oct 15 - Fri, Oct 30

5:00 pm - 7:30 pmDFW Dallas/Fort Worth-SEA Seattle/Tacoma Intl

4h 30mnonstop

5:55 pm - 11:57 pmSEA Seattle/Tacoma Intl-DFW Dallas/Fort Worth

4h 02mnonstop

$419Delta

Tue, Oct 13 - Mon, Nov 2

7:35 am - 2:50 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

9h 15m1 stop Salt Lake City

7:15 am - 1:30 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 15mnonstop

$422Delta

Tue, Oct 13 - Thu, Oct 29

11:47 am - 6:35 pmDFW Dallas/Fort Worth-SEA Seattle/Tacoma Intl

8h 48m1 stop Detroit Metropolitan Wayne County

5:55 pm - 11:57 pmSEA Seattle/Tacoma Intl-DFW Dallas/Fort Worth

4h 02mnonstop

$429Delta

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 $137 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 $137 return.

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

Each week there are around 1,511 direct flights from within the United States to Seattle. The most common day for departures is Sunday, with 20% 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 Friday where tickets can be as cheap as $505. On the other hand, the most expensive day to fly is Monday, where prices are $601 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 $467 on average.

Low season	January
High season	June
Cheapest flight	$79
Average price round-trip	$352
Good deal one-way	$918

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

Most popular time to fly with an average 18% 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 $595, 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 $595 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

Good8,653 verified ratings

7.8Entertainment

8.1Boarding

7.8Comfort

8.5Crew

7.2Food

4.0 Mediocre

Anonymous, Oct 2026

After boarding the plane had to wait an hour at the for the copilot to show up before we could depart

4.0 Mediocre

Kathryn, Oct 2026

No beverage/snack service without any explanation or reason. Late boarding and delayed flight.

4.0 Mediocre

James, Oct 2026

more room in seats, larger snacks, more comms with delays

8.0 Very good

Anonymous, Oct 2026

There was overbooking that delayed boarding. Then an airport emergency lockdown that caused further delays in boarding. However the time was made up during flight and there was a minimal delay in landing. Everything else was excellent.

8.0 Very good

Gary, Oct 2026

Very crowded and the economy seats were the smallest and with the least legroom I have ever experienced. Cabin staff were excellent although the food service was chaotic as they were being each person their food individually instead of from the wagon.

10.0 Wonderful

Anonymous, Oct 2026

Delta is the best. It was all very easy and on time.

10.0 Wonderful

Kimberly, Oct 2026

Very smooth flight and excellent service experience.

10.0 Wonderful

Michael, Oct 2026

Great flight, monitor issues. No flight tracking

4.0 Mediocre

Chinemere, Oct 2026

The cabin and bathroom experience was poor as the cabin and bathroom were dirty and showed signs of an older plane that had not been updated for Customer’s, comfort and health. There was gum on my seat when I arrived and dirt spots around the fan and light controls. The flight was almost entirely full, so there was no way I could be moved from my seat. Th bathroom had the peeling paint.

2.0 Poor

Laura, Oct 2026

Wifi worked inconsistently; outlet to charge computer did not work.

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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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