SAN - BIL

$200 Find Cheap Flights from San Diego to Billings

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 Billings departing on 11/30. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Billings

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Billings, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Billings, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Billings (SAN-BIL)

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

Wed, Nov 12 - Wed, Nov 19
Alaska Airlines Logo
3:43 pm - 12:07 amSAN-BIL
7h 24m1 stop
Alaska Airlines Logo
2:00 pm - 8:56 pmBIL-SAN
7h 56m1 stop
$232Alaska Airlines
Find Deal
Wed, Nov 19 - Sat, Dec 6
Alaska Airlines Logo
6:15 am - 3:00 pmSAN-BIL
7h 45m1 stop
Alaska Airlines Logo
6:00 am - 4:12 pmBIL-SAN
11h 12m2 stops
$239Alaska Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Delta Logo
4:07 pm - 12:10 amSAN-BIL
7h 03m2 stops
Delta Logo
6:25 am - 1:06 pmBIL-SAN
7h 41m1 stop
$242Delta
Find Deal
Wed, Nov 12 - Wed, Nov 19
Delta Logo
4:07 pm - 12:10 amSAN-BIL
7h 03m2 stops
Delta Logo
5:18 am - 12:46 pmBIL-SAN
8h 28m2 stops
$247Delta
Find Deal
Thu, Dec 18 - Mon, Dec 22
Multiple Airlines Logo
1:06 pm - 9:12 amSAN-BIL
19h 06m1 stop
Multiple Airlines Logo
10:02 am - 12:11 pmBIL-SAN
27h 09m1 stop
$253Multiple Airlines
Find Deal
Thu, Dec 18 - Mon, Dec 22
Multiple Airlines Logo
4:47 pm - 9:12 amSAN-BIL
15h 25m2 stops
Multiple Airlines Logo
10:02 am - 12:11 pmBIL-SAN
27h 09m1 stop
$263Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
United Airlines Logo
1:10 pm - 10:49 pmSAN-BIL
8h 39m2 stops
United Airlines Logo
2:31 pm - 11:44 pmBIL-SAN
10h 13m2 stops
$404United Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 9
United Airlines Logo
11:02 am - 9:18 pmSAN-BIL
9h 16m2 stops
United Airlines Logo
5:00 am - 12:45 pmBIL-SAN
8h 45m2 stops
$431United Airlines
Find Deal
Thu, Dec 18 - Sat, Dec 27
American Airlines Logo
9:50 am - 9:14 pmSAN-BIL
10h 24m2 stops
American Airlines Logo
6:50 am - 11:29 amBIL-SAN
5h 39m1 stop
$754American Airlines
Find Deal
Thu, Dec 18 - Sat, Dec 27
American Airlines Logo
9:50 am - 9:14 pmSAN-BIL
10h 24m2 stops
American Airlines Logo
6:50 am - 11:29 amBIL-SAN
5h 39m1 stop
$759American Airlines
Find Deal

Everything you should know

Top airlines
Alaska Airlines
Cheapest • from $232 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 33% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$232
Overall average: $294
Alaska Airlines
Wed 11/12Wed 11/19
SAN - BIL • 1 stop
Cheapest one-way
$200
Typical prices: $235-$309
Multiple Airlines
Sun 11/30
SAN - BIL • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
Booking Insights

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

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

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Billings, 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 Billings is April, where tickets cost $284 (return) on average. On the other hand, the most expensive months are February and January, where the average cost of round-trip tickets is $784 and $575 respectively.

Good to know

Low seasonFebruary
Cheapest flight$200
Best time to beat the crowds but there is an average 85% increase in price.
Most popular time to fly and prices are also 33% lower on average.
Flight from San Diego to Billings

When to book flights from San Diego to Billings

Are your dates flexible? Find out the best times to travel from San Diego to Billings based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Billings

  • What is the cheapest flight from San Diego to Billings?

    In the last 3 days, the lowest price for a flight from San Diego to Billings was $200 for a one-way ticket and $232 for a round-trip.

  • Do I need a passport to fly between San Diego and Billings?

    No

  • Which aircraft models fly most regularly from San Diego to Billings?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Billings?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Diego and Billings, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Billings, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Diego to Billings are Alaska Airlines and Delta. With an average price for the route of $329 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $298 and an overall rating of 7.9.

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

    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 Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from San Diego 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 Billings?

    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 to Billings with an airline and back to San Diego with another airline. Booking your flights between San Diego and BIL can sometimes prove cheaper using this method.

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

    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 to Billings from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Diego to Billings

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Billings. 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 Billings? 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
Alaska AirlinesOverall score based on 11155 reviews
8.1Boarding
7.1Food
8.5Crew
7.0Entertainment
7.8Comfort
Airline reviews

Very mediocre, and disappointing for the price of the ticket

4.0 OkayTiana, Oct 2025SAN - JFK
Read more Alaska Airlines reviews

Very mediocre, and disappointing for the price of the ticket

My flight wait is 3 hours delayed due to Unknown reason. We waited a very long time in the tarmac. Our flight 24 was scheduled @ 7, therefore we left my house at 330 to park our car. We were at the gate @ 530, then we were told at 6a that it will be late , we boarded at 930 but did not take off until 1015. Therefore my arranged pick up in JFK was cancelled because of no show. Before all these I got an email offers of changing my flight to a different date which I took a day earlier. I will never again take Alaska Airlines, very Inefficient and Disappointing.

Such great crew, from checkin to the plane. So friendly and helpful, I was genuinely impressed.

Wheelchair assistance was provided in Seattle and was very gratefully accepted. Thank you to the Alaska staff.

Seats extremely uncomfortable, no entertainment, no snacks, and when boarding, half of the passengers needed to check in the carry on luggage without any explanation.

The flight was jumping between being delayed and closer to schedule about 5 times. Alaska air website showed incorrect times while google had latest info. This panic was horrible to deal with.

I always heard this was a terrible airline but I was happy to experience otherwise. The seats were more comfortable than delta. They did board late and gate was a little chaotic, which is to be expected for a budget airline. I would definitely do it again for that price.

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.

They canceled my flight then changed me $155 for the same flight the next day

Our flight time was drastically changed which caused us to lose a day of vacation

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

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

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

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

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

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.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.