Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $564, Delta is cheaper than United Airlines when it comes to flights to Seattle. However, the cheapest airline flying to Seattle is Alaska Airlines, with an average return price of $548.

Which other airlines fly to Seattle?

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

How much is a flight to Seattle with Delta?

On average, Delta flights to Seattle cost $353 for one-way and $564 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 $80

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Flight Deals

Cheap Delta Flight Deals to Seattle

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip Delta flight deals to Seattle

Sat, Jan 9 - Wed, Jan 13

1:48 pm - 4:59 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 11mnonstop

7:59 pm - 10:50 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 51mnonstop

$137Delta

Thu, Dec 3 - Mon, Dec 7

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

3h 18mnonstop

7:59 pm - 10:52 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 53mnonstop

$139Delta

Sat, Dec 5 - Sat, Dec 12

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

3h 13mnonstop

7:15 am - 10:11 amSEA Seattle/Tacoma Intl-SAN San Diego

2h 56mnonstop

$159Delta

Tue, Dec 1 - Sat, Dec 5

8:59 pm - 11:24 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 25mnonstop

11:00 am - 1:24 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 24mnonstop

$159Delta

Tue, Dec 22 - Tue, Dec 29

11:21 am - 2:40 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 19mnonstop

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

3h 00mnonstop

$167Delta

Fri, Dec 18 - Fri, Dec 25

6:00 am - 8:18 amSFO San Francisco-SEA Seattle/Tacoma Intl

2h 18mnonstop

7:15 am - 9:46 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 31mnonstop

$167Delta

Sat, Dec 5 - Mon, Dec 7

10:41 am - 1:00 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 19mnonstop

11:00 am - 1:24 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 24mnonstop

$172Delta

Mon, Dec 21 - Tue, Jan 12

7:36 am - 10:55 amSAN San Diego-SEA Seattle/Tacoma Intl

3h 19mnonstop

11:45 am - 2:38 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 53mnonstop

$174Delta

Sat, Dec 5 - Mon, Dec 7

10:41 am - 1:00 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 19mnonstop

11:00 am - 1:24 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 24mnonstop

$174Delta

Sat, Dec 12 - Sat, Jan 2

11:06 am - 2:21 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 15mnonstop

11:52 am - 2:48 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 56mnonstop

$182Delta

Recent last minute Delta flight deals to Seattle

Tue, Nov 10 - Wed, Dec 9

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

3h 00mnonstop

5:37 pm - 8:20 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 43mnonstop

$367Delta

Wed, Nov 11 - Mon, Dec 14

11:02 am - 2:13 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 11mnonstop

7:15 am - 10:11 amSEA Seattle/Tacoma Intl-SAN San Diego

2h 56mnonstop

$385Delta

Thu, Nov 12 - Sat, Dec 5

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

2h 51mnonstop

3:21 pm - 5:59 pmSEA Seattle/Tacoma Intl-LAX Los Angeles

2h 38mnonstop

$396Delta

Sat, Nov 14 - Fri, Dec 11

2:12 pm - 4:30 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 18mnonstop

9:22 pm - 11:43 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 21mnonstop

$440Delta

Tue, Nov 10 - Sat, Dec 5

9:58 am - 8:09 pmSFO San Francisco-SEA Seattle/Tacoma Intl

10h 11m1 stop Los Angeles

11:00 am - 1:24 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 24mnonstop

$456Delta

Wed, Nov 11 - Thu, Nov 19

6:00 am - 8:10 amPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 10mnonstop

7:20 am - 11:21 amSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

3h 01mnonstop

$462Delta

Wed, Nov 11 - Mon, Dec 7

9:58 am - 8:09 pmSFO San Francisco-SEA Seattle/Tacoma Intl

10h 11m1 stop Los Angeles

5:56 pm - 8:18 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 22mnonstop

$471Delta

Thu, Nov 12 - Thu, Nov 19

6:36 pm - 8:44 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 08mnonstop

5:55 pm - 9:50 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 55mnonstop

$485Delta

Thu, Nov 12 - Thu, Nov 19

1:14 pm - 3:25 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 11mnonstop

8:30 am - 12:17 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 47mnonstop

$489Delta

Fri, Nov 13 - Sat, Dec 5

8:50 pm - 10:05 amSFO San Francisco-SEA Seattle/Tacoma Intl

13h 15m1 stop Los Angeles

11:00 am - 1:24 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 24mnonstop

$496Delta

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 $252 (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 $407 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 $80 one-way, and $137 round-trip on the route from San Diego to Seattle. The most popular route is from Chicago O'Hare Intl Airport to Seattle and the cheapest ticket found on this route in the last 5 days was $272 return.

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

Each week there are around 1,299 direct flights from within the United States to Seattle. The most common day for departures is Sunday, with 23% 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 $511. On the other hand, the most expensive day to fly is Sunday, where prices are $607 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 $482 on average.

Low season	January
High season	June
Cheapest flight	$80
Average price round-trip	$1,579
Good deal round-trip	$1,342
Good deal one-way	$741

Best time to beat the crowds with an average 26% 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 $564, Delta is cheaper than United Airlines when it comes to flights to Seattle. However, the cheapest airline flying to Seattle is Alaska Airlines, with an average return price of $548.
Which other airlines fly to Seattle?
Along with Delta, you can also fly to Seattle with Alaska Airlines, Alaska Airlines, American Airlines, Southwest and United Airlines.
How much is a flight to Seattle with Delta?
On average, Delta flights to Seattle cost $353 for one-way and $564 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 Lewiston and cost $173.
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

Good8,700 verified ratings

7.2Food

8.1Boarding

8.5Crew

7.8Comfort

7.8Entertainment

6.0 Okay

Ronald, Nov 2026

After flying with Qatar Airways and Kenya Airlines. Delta leaves a lot to be desired

6.0 Okay

Renata, Nov 2026

I faced problems with sit- it looks like brooked

10.0 Wonderful

Anonymous, Nov 2026

Everything were fine

4.0 Mediocre

Justin, Nov 2026

A 6hr delay is going to put a damper on all reviews. It was almost impossible to get into the Delta club also. Zero conveyance. I could not use my status for anything. Makes me wonder why am I loyal to delta?

10.0 Wonderful

Laurie, Nov 2026

I fly coach so there is always the feeling everyone up front has more space than me. Everything was fine - on time which is the most important thing!

10.0 Wonderful

Susan, Nov 2026

Perfect. I love Delta in every way

10.0 Wonderful

Avery, Nov 2026

Great overall experience and use of the Delta One lounge was amazing!

10.0 Wonderful

Mary, Nov 2026

It was great

10.0 Wonderful

Mary, Nov 2026

Always great

8.0 Very good

Olaf, Nov 2026

Nothing special. Couple crew attendants had bad attitude

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Cheap Delta Flight Deals to Seattle

Recent round-trip Delta flight deals to Seattle

Recent one-way Delta flight deals to Seattle

Recent last minute Delta flight deals to Seattle

Recent direct 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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