$70 Find Cheap Flights from San Diego to Washington - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Washington departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from San Diego to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$175
Spokane
Spokane1 stop$153
Pasco
Pasco2 stops$271
Bellingham
Bellingham1 stop$191
Pullman
Pullman1 stop$339
Wenatchee
Wenatchee1 stop$348
Walla Walla
Walla Walla1 stop$323
Yakima
Yakima1 stop$343
Seattle
Seattle1 stop$175
Spokane
Spokane1 stop$153
Pasco
Pasco2 stops$271
Bellingham
Bellingham1 stop$191
Pullman
Pullman1 stop$339
Wenatchee
Wenatchee1 stop$348
Walla Walla
Walla Walla1 stop$323
Yakima
Yakima1 stop$343

Book Cheap San Diego to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Washington 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.

Recent round-trip flight deals from San Diego to Washington

Fri, Aug 28 - Fri, Sep 4
Southwest Logo
10:10 am - 4:30 pm
SAN
-
GEG
6h 20m
1 stop
Southwest Logo
12:20 pm - 3:00 pm
GEG
-
SAN
2h 40mnonstop
$153Southwest
Thu, Aug 13 - Wed, Aug 19
Southwest Logo
2:15 pm - 4:55 pm
SAN
-
GEG
2h 40mnonstop
Southwest Logo
5:45 am - 11:45 am
GEG
-
SAN
6h 00m
2 stops
$158Southwest
Sun, Sep 13 - Sun, Sep 20
Delta Logo
7:00 am - 12:20 pm
SAN
-
GEG
5h 20m
1 stop
Delta Logo
5:10 am - 10:09 am
GEG
-
SAN
4h 59m
1 stop
$163Delta
Thu, Oct 1 - Sun, Oct 4
Alaska Airlines Logo
8:59 pm - 11:53 pm
SAN
-
GEG
2h 54mnonstop
Alaska Airlines Logo
7:16 am - 10:11 am
GEG
-
SAN
2h 55mnonstop
$167Alaska Airlines
Thu, Aug 13 - Wed, Aug 19
Southwest Logo
9:00 am - 3:35 pm
SAN
-
GEG
6h 35m
1 stop
Southwest Logo
5:45 am - 11:45 am
GEG
-
SAN
6h 00m
2 stops
$168Southwest
Tue, Nov 10 - Sun, Nov 15
Alaska Airlines Logo
7:38 pm - 10:55 pm
SAN
-
PAE
3h 17mnonstop
Alaska Airlines Logo
8:30 am - 11:25 am
PAE
-
SAN
2h 55mnonstop
$172Alaska Airlines
Tue, Sep 1 - Sat, Sep 5
Delta Logo
6:29 am - 12:09 pm
SAN
-
PDX
5h 40m
1 stop
Delta Logo
5:30 am - 10:11 am
PDX
-
SAN
4h 41m
1 stop
$172Delta
Mon, Sep 21 - Sat, Sep 26
Frontier Logo
9:43 pm - 10:00 am
SAN
-
SEA
12h 17m
1 stop
Frontier Logo
7:00 am - 3:41 pm
SEA
-
SAN
8h 41m
1 stop
$175Frontier
Sun, Aug 16 - Fri, Aug 28
Frontier Logo
8:51 pm - 11:04 am
SAN
-
SEA
14h 13m
1 stop
Frontier Logo
1:35 pm - 11:51 pm
SEA
-
SAN
10h 16m
1 stop
$176Frontier
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
7:15 am - 12:12 pm
SAN
-
PSC
4h 57m
1 stop
United Airlines Logo
5:15 am - 6:35 pm
PSC
-
SAN
13h 20m
2 stops
$316United Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Washington flights

Get data-powered insights and trends into flights from San Diego to Washington to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Diego to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to State of Washington departing in September.

What is the cheapest San Diego to Washington flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Washington from San Diego found in the last 5 days was to Spokane, at $134 round-trip. The most popular route is from San Diego (SAN) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 5 days was $176.

What is the cheapest time of day to fly to Washington?

The average price for all round-trip flights from San Diego to Washington depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $299 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $392.

Can I save money by flying with a layover from San Diego to Washington?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $360, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Diego to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Washington is January, when tickets cost $212 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $322 and $305 respectively.

What’s the cheapest day of the week to fly from San Diego to Washington?

The average price of all round-trip flights from San Diego to Washington clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Diego to Washington, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington, Wednesday is the cheapest day to fly and Friday is the most expensive.

How far in advance should I book a flight from San Diego to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Washington, you should book around 4 weeks before departure, which saves you about 61% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

Cheapest flight

$70
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from San Diego to Spokane

Flights from San Diego to Washington: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from San Diego to Washington 
MaryFlew with Alaska Airlines
SAN
-
SEA
Apr 2026
If any one has a hard time walking long distances automatically ask for wheelchair assistance the person helps guide you to your gate and there is a lot of walking
crd041678Flew with Alaska Airlines
SAN
-
SEA
Apr 2024
Arrive early. May want to pay for the upgrade to a better seat. Early boarding is best.

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from San Diego to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Diego to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington

  • Looking for a cheap flight? 25% of our users found tickets from San Diego to the following destinations at these prices or less: Seattle $172 one-way - $249 round-trip

Reviews of the top 5 airlines serving from San Diego to Washington

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4243 reviews
8.0Comfort
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
Airline reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

6.0 GoodGordon, Jul 2026
SAN - MCO
Read more Southwest reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

There was over a 9 hour delay for one thing after another. A toilet problem, they had to change the brakes, they had to refuel, three pilots times out, etc. We had to sit on the plane at the gate for over 5 hours with no air.

Unfortunately it was not a good experience. There was a rude stewardess.

They were really helpful with every question and my kids had never been on a plane and the staff made them feel comfortable

Very expensive for short flights. Can’t communicate with Alaska Air about passport issue at check-in. Also no replies to my text messages. Wanted to extend our vacation for two more days but this expensive flight ticket is called SAVER and I couldn’t make changes or cancel or get a credit even, so I paid another airline for the return trip. Extremely disappointed.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

My seat was comfortable. There was no TV on the airplane.

Flight kept getting delayed. Multiple children forced to stay awake for a flight that took longer than expected.

Flight was delayed because overhead bin didn’t close. The most insanely stupid thing I’ve ever heard.

The steward on my flight went above and beyond in hospitality. So friendly and helpful. If I could give him more stars I would. I was so impressed I plan to use Alaska whenever possible and will praise highly to family and friends. (Ive already told my daughter and I’n-laws)

I had to cancel my flight for health reasons. They gave 0 options to get my money back or credit me another flight. Makes no sense, but they are greedy

Flying isn’t always fun but my flight was good and that’s saying alot

This flight was significantly affected by poor wifi connections. I couldn’t get my work done because the wifi kept dropping. Even texts were not going through. There is no seat power in premium class either. I fly a lot. Today was my 10th flight in 4 weeks. This was by far the only flight that was sub par.

Very good flight. Crew was great. No issues and we even arrived early.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

There was a loud squeaky sound the whole time we were flying.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

comfortable but the food is horrible. I have flown Hawaiian several times now and no matter what they say the food is its the same squashed bread with melted goop inside. Tastes fake and isnt what they represent, its quite nasty. What happend to real food? And there is NO entertainment!! so not sure why they are asking for a review on that.

3 hour wait on customer service after flight was cancelled. Was bumped to a flight where I wouldnt have gotten to my destination for another 2 days. Had to fully refund flight and book a new one the following morning. Paid twice the amount for the flight than I had originally booked. Very disappointed I was not offered any sort of discount or points for all of the frustration, in fact the airline profited twice as much off of me by cancelling my flight and and changing my entire trip.

I accidentally made this purchase and they wouldn’t refund me even though I called immediately to cancel it.

The flight was delayed and they didn’t have a pilot for the flight. Seemed very unorganized and took way longer than expected.

The worst flight experience I've ever had. Our flight was delayed 14 whole hours because the flight crew never showed up. We had to wait in a two hour line to get our new boarding passes, we were told we had no other option but to fly at 10pm (we didn't depart until 11:45pm). Everyone had to contact their hotels and car rental places, workplaces, etc. since we lost an entire day's worth of travel. The crew showed up at 10:15, which was past the time we were supposed to board. They were laughing and being completely smug when they boarded, and they took another hour to board us onto our flight. The flight crew never came to check in on us, we were quickly given one drink and sandwich and they turned off the lights and were negligent the rest of the trip. My mom asked three attendants for a seat belt extender, they never brought one. I was dehydrated and never received another drink. They were very rude and unfriendly, we had been up since 4am the morning of our flight and didn't land in our destination until 2am the next day (5am local time). This was unacceptable service and treatment, these flights are not cheap and we were inconvenienced out of an entire day of travel. This was 100% avoidable and was the fault of Hawaiian Airlines, and their crews inability to show up to work on time.

I was unable to get a check im and get a boarding pass. I tried at the desk of the flight operator Alaska, was told to go to Hawaiian and almost had to go back to Alaskan. In the end inwas told to go thru security and directly to the gate without checking in. It would have been more helpful to have the details rather than walking all over the terminals trying to check in.

We were delayed at the SD gate for close to an hour before we were allowed to depart for SJ. Reason given was inadequate ground crew to move the plane from the gate.

Your crew shortage delayed departure by an hour resulting in us missing an event we had scheduled for that afternoon outside of Fresno.

Despite two calls as well as a chat on the website, Alaska would not add my TSA number to my reservation. The flight was switched from Hawaiian to Alaska which caused them to mess this up in the first place

We had an awful experience getting our bags checked in. Frontier’s check in on the app manipulated us into buying the business package because that was the only option available for a checked bag which included two checked bags per person which we did not need. Upon arriving to the airport, we stood in line for what seemed like forever at the baggage check in and there was no one available at the counter. We were first in line and we were afraid we were going to miss our flight due to the baggage attendant being late. After realizing there were a lot of other people waiting at the baggage check in and no one available. I reached out to Frontier and could not get any customer service so I had to call the airport to page the baggage attendant to send someone to the counter to check in our bags before we were able to go through security , I finally spoke to the attendant at the counter and explained to her that we had to pay for two checked bags person a total of six bags when we only had a total of three bags between three people she said to reach out to Frontier and they would issue a refund for the three bags that we paid for and did not need. I reached out to Frontier which I was not able to reach anybody by phone so I had to go through their automated chat feature, which sent me around in circles until I finally reached a representative to assist me. I explained to them what happened and they explained that they were not able to assist me. I continued to push the issue with them as this was very frustrating and they finally put in a customer service ticket where we were issued a flight credit and we were so disappointed because after this experience, we NEVER want to fly Frontier again, and we do not want a credit that we will not use. Frontier charged us almost $500 for us to check three bags which is absolutely absurd! The customer service agents were not able to offer anything else other than a flight credit and I do not feel like my frustrations were truly heard , we will never use Frontier Airlines again ! Truly Theft by Manipulation! They should be ashamed!

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

The trip was good but the last minute changes I didn’t like because I had already talked to the attendee and they didn’t help me with my ticket I was having trouble checking in and when the time was up they help me but charge me for that and last minute luggage it was a small bag. After I was in the airplane I realized you were charging because the flight was almost empty and you have to get the money some how. Thanks for everything.

Our flight was delayed by four hours without notice, the app for getting my boarding pass is super confusing, and I wasn’t able to check a suitcase without paying for a higher cost package

First the gate was a total nightmare-no chairs anywhere! So over crowded and only one bathroom and nightmare of food service - took forever and NOT one place to sit. No inflight entertainment and had to pay 60.00 for a small carry on. I will never fly Frontier again!

I didn't like anything about the flight It was my first time and definitely my last time boarding a frontier flight. Their counter agents need training and they need to learn to communicate regularly and respectfully

Flight was 3 hours late leaving. Poor communication from the staff about delays. Impossible to get in touch with customer service (by design). And it actually didn't come out to be much cheaper than a non-budget airline! Not worth the headache, I'm never flying Frontier again

I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Terrible. Seats are bad and the baggage policy is inconsistent

Everything you need to know for your flight from San Diego to Washington

Information on your arrival and departure airports