BIL - SAN

$95 Find Cheap Flights from Billings to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to San Diego 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.
1 adult
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Diego, 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 Billings to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$266
Typical prices: $519-$375
Multiple Airlines
Mon 7/20Thu 7/23
BIL - SAN • 1 stop
Cheapest one-way
$95
Typical prices: $169-$259
Multiple Airlines
Mon 8/24
BIL - SAN • 1 stop
Top airlines
Cheapest • from $353 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Billings and San Diego. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $372 (round-trip)
Shortest trip • 4h 38m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 San Diego!
Flight Deals
Booking Insights
Flight Deals

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

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

Mon, Jul 20 - Thu, Jul 23
Multiple Airlines Logo
9:59 am - 8:06 pm
BIL
-
SAN
11h 07m
1 stop
Multiple Airlines Logo
8:51 pm - 9:14 am
SAN
-
BIL
11h 23m
1 stop
$266Multiple Airlines
Mon, Jul 20 - Thu, Jul 23
Multiple Airlines Logo
9:59 am - 12:04 am
BIL
-
SAN
15h 05m
2 stops
Multiple Airlines Logo
8:51 pm - 9:14 am
SAN
-
BIL
11h 23m
1 stop
$350Multiple Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
6:01 am - 1:23 pm
BIL
-
SAN
8h 22m
1 stop
Alaska Airlines Logo
11:07 am - 6:52 pm
SAN
-
BIL
6h 45m
1 stop
$353Alaska Airlines
Thu, Nov 5 - Mon, Nov 9
Delta Logo
11:35 am - 4:06 pm
BIL
-
SAN
5h 31m
1 stop
Delta Logo
5:00 pm - 10:32 pm
SAN
-
BIL
4h 32m
1 stop
$361Delta
Fri, Nov 6 - Tue, Nov 10
Delta Logo
6:25 pm - 11:47 pm
BIL
-
SAN
6h 22m
1 stop
Delta Logo
9:45 am - 5:49 pm
SAN
-
BIL
7h 04m
1 stop
$364Delta
Wed, Aug 19 - Wed, Aug 26
United Airlines Logo
5:00 am - 11:35 am
BIL
-
SAN
7h 35m
2 stops
United Airlines Logo
6:30 am - 1:21 pm
SAN
-
BIL
5h 51m
1 stop
$366United Airlines
Sun, Sep 20 - Sun, Sep 27
Delta Logo
5:20 am - 8:41 am
BIL
-
SAN
4h 21m
1 stop
Delta Logo
6:15 am - 12:17 pm
SAN
-
BIL
5h 02m
1 stop
$367Delta
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
5:00 am - 11:35 am
BIL
-
SAN
7h 35m
2 stops
United Airlines Logo
6:30 am - 1:21 pm
SAN
-
BIL
5h 51m
1 stop
$372United Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
3:44 pm - 10:58 pm
BIL
-
SAN
8h 14m
2 stops
Alaska Airlines Logo
9:08 am - 6:52 pm
SAN
-
BIL
8h 44m
1 stop
$375Alaska Airlines
Wed, Aug 19 - Tue, Aug 25
United Airlines Logo
5:00 am - 9:05 am
BIL
-
SAN
5h 05m
1 stop
United Airlines Logo
6:20 am - 5:16 pm
SAN
-
BIL
9h 56m
2 stops
$376United Airlines
Booking Insights

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

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

How much is a round-trip flight from Billings to San Diego?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to San Diego, 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 Billings to San Diego is January, where tickets cost $310 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $567 and $449 respectively.

Good to know

Low seasonApril
Cheapest flight$95
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Billings to San Diego

When to book flights from Billings to San Diego

Are your dates flexible? Find out the best times to travel from Billings to San Diego 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 Billings to San Diego

  • Which public transportation mode is suitable for traveling from Billings to BIL?

    If you’d like to travel from Billings to BIL via public transport, you can board a bus or a taxi. The means you settle on will be determined by how quickly you’d like to get to the airport and how much you’re willing to part with as fare. If you’re in a rush, it’s in your best interest to board a taxi, while if you’re on a budget, it’s advisable that you board a bus.

  • Where can I get information at BIL?

    In case you’ve got a query you’d like answered at BIL, you should head to the airport’s information center. Manned by well-informed and professional staff, this center is situated in the Baggage Claim area near the exit stairs.

  • Does SAN have an on-site hotel?

    If you’d like to stay at a hotel within SAN’s grounds, you’ll have to settle for one of the hotels near the airport, as SAN has no on-site hotels. Some of the notable hotels near this airport include TownPlace Suites San Diego Airport, Sheraton San Diego Hotel & Marina, and Hampton Inn & Suites San Diego Airport Liberty Station.

  • Where is SAN’s USO lounge?

    SAN’s USO Lounge is situated in Terminal 2 East, near the Gate Parking Lot. Reserved for serving military members and their families, this lounge boasts comfortable seating, snacks, drinks, and several entertainment sources.

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

    In the last 5 days, the lowest price for a flight from Billings to San Diego was $95 for a one-way ticket and $266 for a round-trip.

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

    No

  • Which airports will I be using when flying from Billings to San Diego?

    When flying out of Billings you will be using Billings Logan Intl. You will be landing at San Diego, also known as San Diego.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Billings to San Diego are Delta and Alaska Airlines. With an average price for the route of $399 and an overall rating of 7.9, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $313 and an overall rating of 7.9.

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

    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 Billings to San Diego.

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

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

    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 San Diego with an airline and back to Billings with another airline. Booking your flights between Billings and SAN 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 Billings to San Diego?

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

KAYAK’s top tips for finding a cheap flight from Billings to San Diego

  • In Billings, you’ll board your flight to San Diego at Billings Logan International Airport (BIL). Situated two miles northwest of downtown Billings, this air transit station is a hub for Silver Airways, Cape Air & Nantucket Airlines, and Corporate Air. In San Diego, you’ll alight from your flight at San Diego International Airport (SAN). This international airport, located three miles northwest of San Diego, serves as a hub for Southwest Airlines, Alaska Airlines, West Air, and Pacific Southwest Airlines.
  • On the date you’re set to fly from BIL to SAN, arrive at BIL at least 1h 30min before your flight’s departure time. Arriving at the airport this early will ensure you go through the airport’s security gates in time for your flight. Additionally, it will ensure you have time to check out the points of interest at the airport.
  • If you’re traveling from BIL to SAN with your pet, you can let your pet take a leak in one of the airport’s pet relief areas. Currently, BIL is home to two pet relief areas. Both are situated outside of the airport’s main terminal.
  • In case you need emergency assistance at SAN, you should visit one of the Traveler’s Aid offices available at the airport. Traveler’s Aid is an organization that offers emergency services to stranded passengers. At SAN, it has offices in the Baggage Claim areas of Terminals 1 and 2.
  • If you’d like to rent a car once you land at SAN, you’ll have to head to the airport’s off-site car rental facility. Accessible from the airport’s terminals via shuttles, this center has counters for agencies such as Enterprise, Hertz, National, Alamo, and Avis.

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

 
See real verified KAYAK customer reviews for airlines flying from Billings to San Diego. 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 Billings to San Diego? 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.
7.9
Alaska AirlinesOverall score based on 12517 reviews
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Airline reviews

Over all it was great. My original flight was canceled but they quickly rebooked me. I was frustrated because I had to cancel my entire plans for the day but all considered, not bad. The crew tried to keep us calm while we sat in the plane for was felt was an hour or so but they could use a bit of a script. The seats were comfortable and I would give it another try.

8.0 ExcellentAnonymous, Jun 2026
SBA - SAN
Read more Alaska Airlines reviews

Over all it was great. My original flight was canceled but they quickly rebooked me. I was frustrated because I had to cancel my entire plans for the day but all considered, not bad. The crew tried to keep us calm while we sat in the plane for was felt was an hour or so but they could use a bit of a script. The seats were comfortable and I would give it another try.

Having the internet available while flying was great. Better than having to choose from watching movies from a limited selection.

Not able to get boarding pass for domestic connection flight when check in at international airport. I was told I need to get connection flight boarding pass after I entered US. It us very inconvenient.

I was very impressed at how Alaska Airlines handles people with medical needs.

Everything went smoothly from the transfer from Orlando to a quick board. Flight was not full and we were able to get underway a little early. My only critique is that in Orlando, they offered active duty service members and veterans to board ahead of their zones in the initial boarding process. They did not offer to veterans in San Diego. Both flights were comfortable

Good flight overall. Lots of bumps during flight but pilot kept searching for smooth air

The gate agents begged us to check our carryons. They BEGGED us, over and over, and said that the flight was completely, totally full, and said that if we don't check our bags, it will cause huge delays. They finally said that "group suchandsuch will be required to check bags!" So I checked mine. Well, the flight wasn't close to being full, and many of the overhead compartments were *empty*! Moreover, my bag was delayed at the carousel, and it wasn't on the carousel that was posted. COME ON, AIRLINE, you can look at the seating for the flight on your computer and decide whether it's really necessary to beg and beg and beg people to go through the hassle of checking their bags! This is annoying as hell and makes me not want to use your crummy airline ever again.

A gluten free option I could actually eat would have been nice.

Good. I didn’t order food and there was no entertainment available.

It is a hassle to not have entertainment screens on the backs of the seats.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

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

Information on your arrival and departure airports