Is Delta cheaper than other airlines flying to Seattle?

Delta is the cheapest airline flying to Seattle with an average return price of $408. Flights to Seattle with Alaska Airlines cost $483 on average.

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 $342 for one-way and $408 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 $59

Flight Deals

Cheap Delta Flight Deals to Seattle

Here are some of the best deals found on KAYAK recently from Delta to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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, Feb 17 - Thu, Feb 19

6:40 am - 8:51 am

DEN

SEA

3h 11mnonstop

7:40 pm - 11:25 pm

SEA

DEN

2h 45mnonstop

$117Delta

Thu, Feb 26 - Thu, Mar 5

5:55 am - 8:13 am

SFO

SEA

2h 18mnonstop

7:10 am - 9:30 am

SEA

SFO

2h 20mnonstop

$117Delta

Sun, Feb 8 - Fri, Mar 6

7:45 am - 10:13 am

SJC

SEA

2h 28mnonstop

8:35 am - 10:55 am

SEA

SJC

2h 20mnonstop

$117Delta

Thu, Mar 26 - Wed, Apr 1

7:40 pm - 9:52 pm

DEN

SEA

3h 12mnonstop

7:46 pm - 11:32 pm

SEA

DEN

2h 46mnonstop

$127Delta

Tue, Mar 31 - Sat, Apr 18

7:29 pm - 9:48 pm

SFO

SEA

2h 19mnonstop

9:39 pm - 11:59 pm

SEA

SFO

2h 20mnonstop

$132Delta

Mon, Feb 16 - Fri, Feb 20

7:00 am - 12:33 pm

DEN

SEA

6h 33m

1 stop

7:40 pm - 11:25 pm

SEA

DEN

2h 45mnonstop

$137Delta

Tue, Apr 14 - Sat, Apr 25

12:01 pm - 2:55 pm

LAX

SEA

2h 54mnonstop

5:59 pm - 8:41 pm

SEA

LAX

2h 42mnonstop

$137Delta

Sat, Feb 7 - Sun, Feb 8

5:55 am - 1:00 pm

SFO

SEA

7h 05m

1 stop

7:15 am - 9:35 am

SEA

SFO

2h 20mnonstop

$137Delta

Sat, Feb 7 - Mon, Feb 9

2:25 pm - 4:46 pm

SJC

SEA

2h 21mnonstop

11:17 am - 7:12 pm

SEA

SJC

7h 55m

1 stop

$137Delta

Tue, Mar 31 - Fri, Apr 17

2:55 pm - 5:09 pm

SFO

SEA

2h 14mnonstop

9:39 pm - 11:59 pm

SEA

SFO

2h 20mnonstop

$142Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$59
Average price round-trip	$582
Good deal round-trip	$494
Good deal one-way	$782

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from Denver 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?
Delta is the cheapest airline flying to Seattle with an average return price of $408. Flights to Seattle with Alaska Airlines cost $483 on average.
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 $342 for one-way and $408 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 Tucson and cost $99.
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 July and prices are highest at this time. The cheapest month to fly is January.

7.9

Good8,075 verified ratings

8.5Crew

7.9Comfort

7.8Entertainment

8.1Boarding

7.2Food

2.0 Poor

byron, Jan 2026

Delay, delay, delay. Deicing, delay.

4.0 Mediocre

byron, Jan 2026

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

8.0 Very good

Polycarp, Jan 2026

Hassle-free and smooth.

10.0 Wonderful

Michael, Jan 2026

My requested wheelchair never appeared. So many entertainment choices yet, I found little of interest and no internet option to search on my own. Both were minor issues.

10.0 Wonderful

Ron, Jan 2026

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

2.0 Poor

Hiroyasu, Jan 2026

Flight was canceled.

4.0 Mediocre

Uros, Jan 2026

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

10.0 Wonderful

Victoria, Jan 2026

It would have been better if the flight wasn't delayed by 2.5 hours

10.0 Wonderful

Eric, Jan 2026

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

6.0 Okay

Deepak, Jan 2026

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

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SEA

Find cheap Delta flights to Seattle from $59

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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

Good to know

When to book flights with Delta to Seattle

FAQs for flying to Seattle with Delta

Is Delta cheaper than other airlines flying to Seattle?

Delta is the cheapest airline flying to Seattle with an average return price of $408. Flights to Seattle with Alaska Airlines cost $483 on average.

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 $342 for one-way and $408 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.

Top tips for your flights to Seattle with Delta

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Everything you need to know for your flight to Seattle

Other airlines flying to Seattle

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Seattle

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