Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $554, 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 $525.

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 $554 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 $79

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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

Tue, Dec 1 - Thu, Dec 3

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

$131Delta

Thu, Nov 19 - Mon, Nov 23

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

3h 18mnonstop

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

2h 52mnonstop

$132Delta

Sat, Dec 19 - Fri, Dec 25

2:20 pm - 4:44 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 24mnonstop

11:15 am - 1:36 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 21mnonstop

$137Delta

Fri, Dec 4 - Tue, Dec 8

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

3h 13mnonstop

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

2h 50mnonstop

$144Delta

Thu, Dec 31 - Sat, Jan 2

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

2h 23mnonstop

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

2h 31mnonstop

$147Delta

Sun, Dec 13 - Tue, Dec 15

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

2h 25mnonstop

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

2h 21mnonstop

$154Delta

Tue, Dec 1 - Thu, Dec 3

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

$157Delta

Sun, Dec 13 - Sat, Dec 19

2:19 pm - 4:44 pmSFO San Francisco-SEA Seattle/Tacoma Intl

2h 25mnonstop

7:52 pm - 10:11 pmSEA Seattle/Tacoma Intl-SFO San Francisco

2h 19mnonstop

$157Delta

Thu, Nov 19 - Mon, Nov 23

6:47 pm - 10:00 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 13mnonstop

9:55 am - 12:51 pmSEA Seattle/Tacoma Intl-SAN San Diego

2h 56mnonstop

$158Delta

Tue, Dec 1 - Tue, Dec 1

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

3h 15mnonstop

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

2h 53mnonstop

$164Delta

Recent last minute Delta flight deals to Seattle

Tue, Nov 3 - Tue, Dec 1

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

2h 21mnonstop

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

2h 31mnonstop

$372Delta

Sat, Oct 31 - Tue, Dec 1

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

4h 45mnonstop

10:39 am - 4:50 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 11mnonstop

$398Delta

Tue, Nov 3 - Fri, Dec 4

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

4h 45mnonstop

5:50 pm - 11:57 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 07mnonstop

$417Delta

Tue, Nov 3 - Fri, Dec 4

4:00 pm - 6:44 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

4h 44mnonstop

1:45 pm - 9:35 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

5h 50m1 stop Minneapolis St Paul

$427Delta

Mon, Nov 2 - Thu, Jan 7

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

4h 46mnonstop

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

4h 15mnonstop

$428Delta

Tue, Nov 3 - Fri, Dec 4

5:27 am - 1:43 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

10h 16m1 stop Atlanta Hartsfield-Jackson

1:25 pm - 9:56 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

6h 31m1 stop Salt Lake City

$437Delta

Sun, Nov 1 - Sat, Jan 9

1:55 pm - 10:05 pmORD Chicago O'Hare Intl-SEA Seattle/Tacoma Intl

10h 10m1 stop Detroit Metropolitan Wayne County

5:54 pm - 11:58 pmSEA Seattle/Tacoma Intl-ORD Chicago O'Hare Intl

4h 04mnonstop

$438Delta

Sat, Oct 31 - Tue, Nov 10

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

$452Delta

Mon, Nov 2 - Thu, Nov 12

3:59 pm - 7:05 pmSAN San Diego-SEA Seattle/Tacoma Intl

3h 06mnonstop

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

2h 58mnonstop

$453Delta

Mon, Nov 2 - Tue, Dec 15

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

4h 30mnonstop

9:25 am - 3:29 pmSEA Seattle/Tacoma Intl-DFW Dallas/Fort Worth

4h 04mnonstop

$471Delta

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 $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 $406 and $391 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 $131 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 $131 return.

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

Each week there are around 1,619 direct flights from within the United States to Seattle. The most common day for departures is Sunday, with 17% 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 $507. On the other hand, the most expensive day to fly is Sunday, where prices are $599 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 $473 on average.

Low season	January
High season	June
Cheapest flight	$79
Average price round-trip	$607
Good deal round-trip	$516
Good deal one-way	$759

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 $554, 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 $525.
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 $554 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 Palm Springs and cost $158.
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

Good8,687 verified ratings

7.8Entertainment

7.2Food

7.8Comfort

8.1Boarding

8.5Crew

10.0 Wonderful

Anonymous, Oct 2026

Everything was pretty good. I would like to have more drinks (water) during four hours of the flight.

6.0 Okay

Christina, Oct 2026

Love delta. San Jose airport terrible.

4.0 Mediocre

Michael, Oct 2026

Flight crew was very positive and friendly

2.0 Poor

Emily, Oct 2026

This flight was the flight we missed due to deltas delay at our first airport going TO Atlanta.

6.0 Okay

Emily, Oct 2026

In-flight: great! Efficient & comfortable, no complaints. On the ground: quite the opposite. The flight was delayed with no real explanation. If you can fly direct with Delta that's your best bet. Connecting flights with them when one is delayed, especially if the next flight is to a small airport, really was a mess. They did correct the problem with no cost to us, but it made getting home a 24 hr journey instead of 8. Also, staff at the gate at Minneapolis was NOT kind at all.

6.0 Okay

Susan, Oct 2026

Wi-fi was out for the whole flight. I pay a premium to fly Delta because it has wifi and because it was out I didn’t get to work on anything I wanted to. I’ll have to make it up later this week by spending less time with my family.

10.0 Wonderful

Peter, Oct 2026

great

10.0 Wonderful

Joel, Oct 2026

I enjoyed the whole flight and the crew was amazing i dont usually fly delta

10.0 Wonderful

Joel, Oct 2026

Very nice the whole crew was amazing and very professional. I had an offer for a drink it was handled great and amazing crew and nice flight.

10.0 Wonderful

Liliana, Oct 2026

Poor snacks

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Cheap Delta Flight Deals to Seattle

Recent round-trip Delta flight deals to Seattle

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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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