Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $597, 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 $528.

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 $597 for a round-trip.

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 $98

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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

Mon, Dec 14 - Thu, Dec 31

6:47 pm - 10:05 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 18mnonstop

3:00 pm - 5:50 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 50mnonstop

$136Delta

Tue, Dec 1 - Thu, Dec 3

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

3h 15mnonstop

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

2h 56mnonstop

$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

$138Delta

Fri, Dec 25 - Tue, Dec 29

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

2h 19mnonstop

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

2h 31mnonstop

$167Delta

Thu, Dec 3 - Mon, Dec 7

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

2h 25mnonstop

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

2h 31mnonstop

$168Delta

Mon, Dec 14 - 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

$171Delta

Wed, Dec 23 - Tue, Dec 29

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

3h 19mnonstop

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

3h 00mnonstop

$172Delta

Fri, Dec 18 - Sat, Dec 26

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

$172Delta

Fri, Dec 25 - Sat, Jan 2

3:43 pm - 6:56 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 13mnonstop

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

3h 00mnonstop

$177Delta

Sun, Dec 13 - Mon, Jan 4

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

3h 13mnonstop

9:59 am - 12:53 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 54mnonstop

$181Delta

Recent last minute Delta flight deals to Seattle

Sun, Nov 8 - Mon, Nov 23

5:45 pm - 8:04 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 19mnonstop

7:20 am - 9:43 amSEA Seattle/Tacoma Intl-SFO San Francisco

2h 23mnonstop

$375Delta

Sat, Nov 7 - Mon, Nov 23

12:05 pm - 8:27 pmSFO San Francisco-SEA Seattle/Tacoma Intl

8h 22m1 stop Los Angeles

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

2h 11mnonstop

$435Delta

Mon, Nov 9 - Sun, Nov 22

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

3h 10mnonstop

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

2h 56mnonstop

$450Delta

Sat, Nov 7 - Tue, Nov 17

7:35 pm - 9:53 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 18mnonstop

1:42 pm - 5:35 pmSEA Seattle/Tacoma Intl-PHX Phoenix Sky Harbor Intl

2h 53mnonstop

$452Delta

Sun, Nov 8 - Sat, Nov 14

6:00 am - 12:30 pmEWR Newark-SEA Seattle/Tacoma Intl

9h 30m1 stop Minneapolis St Paul

7:55 pm - 5:59 amSEA Seattle/Tacoma Intl-EWR Newark

7h 04m1 stop Salt Lake City

$467Delta

Fri, Nov 6 - Mon, Dec 7

6:30 am - 8:58 amDFW Dallas/Fort Worth-SEA Seattle/Tacoma Intl

4h 28mnonstop

5:58 pm - 11:53 pmSEA Seattle/Tacoma Intl-DFW Dallas/Fort Worth

3h 55mnonstop

$471Delta

Fri, Nov 6 - Mon, Nov 16

1:06 pm - 3:19 pmPHX Phoenix Sky Harbor Intl-SEA Seattle/Tacoma Intl

3h 13mnonstop

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

3h 01mnonstop

$475Delta

Fri, Nov 6 - Mon, Nov 23

5:18 pm - 9:19 amSFO San Francisco-SEA Seattle/Tacoma Intl

16h 01m1 stop Los Angeles

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

2h 11mnonstop

$475Delta

Sun, Nov 8 - Mon, Nov 16

11:50 am - 5:58 pmEWR Newark-SEA Seattle/Tacoma Intl

9h 08m1 stop Minneapolis St Paul

6:00 am - 3:59 pmSEA Seattle/Tacoma Intl-EWR Newark

6h 59m1 stop Detroit Metropolitan Wayne County

$492Delta

Thu, Nov 5 - Mon, Nov 23

12:05 pm - 8:27 pmSFO San Francisco-SEA Seattle/Tacoma Intl

8h 22m1 stop Los Angeles

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

2h 11mnonstop

$504Delta

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 February, where tickets cost $249 (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 $392 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 $98 one-way, and $167 round-trip on the route from San Francisco 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 $136 return.

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

Each week there are around 948 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 $509. On the other hand, the most expensive day to fly is Sunday, where prices are $604 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 $476 on average.

Low season	January
High season	June
Cheapest flight	$98
Average price round-trip	$1,518
Good deal round-trip	$1,290
Good deal one-way	$841

Best time to beat the crowds with an average 27% drop in price.

Most popular time to fly with an average 18% increase in price.

Flight from San Francisco 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 $597, 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 $528.
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 $597 for a round-trip.
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 Boise and cost $207.
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

Good8,698 verified ratings

7.8Entertainment

7.2Food

8.1Boarding

7.8Comfort

8.5Crew

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

2.0 Poor

James, Nov 2026

I used by Skymiles to upgrade to First so that I could comfortably work using my laptop. But WiFi was intermittent and unavailable for long periods. I feel like I wasted 70,000 miles :(

10.0 Wonderful

Eric, Nov 2026

Great as one can be for a one connection 6 hour flight

8.0 Very good

Steven, Nov 2026

Packed flight and not sure why dinner service would start at midnight while passengers we’re trying to sleep

8.0 Very good

Steven, Nov 2026

The gate attendant was not clear w message on flight delays.

2.0 Poor

Bradley, Nov 2026

Every uncomfortable. Chairs don’t recline

2.0 Poor

Bradley, Nov 2026

Chairs don’t recline and the ones that do recline, barely do recline. It was most uncomfortable flight i ever been on.

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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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