SAN - BIL

$181 Find Cheap Flights from San Diego to Billings - 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 Billings departing on 8/4. 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
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Everything you should know

Cheapest round-trip
$266
Typical prices: $339-$293
Multiple Airlines
Thu 10/15Fri 10/30
SAN - BIL • 1 stop
Cheapest one-way
$181
Typical prices: $279-$340
United Airlines
Tue 8/4
SAN - BIL • 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 San Diego and Billings. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $430 (round-trip)
Shortest trip • 4h 47m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
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

Thu, Oct 15 - Fri, Oct 30
Multiple Airlines Logo
7:13 pm - 9:29 am
SAN
-
BIL
13h 16m
1 stop
Multiple Airlines Logo
11:19 am - 9:02 am
BIL
-
SAN
22h 43m
1 stop
$266Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
8:51 pm - 9:10 am
SAN
-
BIL
11h 19m
1 stop
Multiple Airlines Logo
10:00 am - 8:06 pm
BIL
-
SAN
11h 06m
1 stop
$307Multiple Airlines
Thu, Oct 15 - Fri, Oct 30
Multiple Airlines Logo
1:35 pm - 9:29 am
SAN
-
BIL
18h 54m
1 stop
Multiple Airlines Logo
11:19 am - 7:37 pm
BIL
-
SAN
33h 18m
2 stops
$323Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
8:51 pm - 9:10 am
SAN
-
BIL
11h 19m
1 stop
Multiple Airlines Logo
10:00 am - 9:10 am
BIL
-
SAN
24h 10m
2 stops
$335Multiple Airlines
Thu, Oct 15 - Fri, Oct 30
Alaska Airlines Logo
2:59 pm - 11:50 pm
SAN
-
BIL
7h 51m
1 stop
Alaska Airlines Logo
7:32 pm - 10:06 am
BIL
-
SAN
15h 34m
1 stop
$353Alaska Airlines
Fri, Sep 18 - Sun, Sep 20
Alaska Airlines Logo
3:50 pm - 11:29 pm
SAN
-
BIL
6h 39m
1 stop
Alaska Airlines Logo
6:14 am - 1:21 pm
BIL
-
SAN
8h 07m
1 stop
$360Alaska Airlines
Wed, Jul 15 - Tue, Jul 21
Delta Logo
5:01 pm - 10:50 pm
SAN
-
BIL
4h 49m
1 stop
Delta Logo
5:20 am - 8:41 am
BIL
-
SAN
4h 21m
1 stop
$361Delta
Fri, Sep 11 - Tue, Sep 15
Delta Logo
9:45 am - 5:48 pm
SAN
-
BIL
7h 03m
1 stop
Delta Logo
12:57 pm - 6:06 pm
BIL
-
SAN
6h 09m
1 stop
$364Delta
Fri, Sep 4 - Sun, Sep 6
Alaska Airlines Logo
8:16 pm - 3:02 pm
SAN
-
BIL
17h 46m
1 stop
Alaska Airlines Logo
7:29 pm - 10:39 am
BIL
-
SAN
16h 10m
1 stop
$367Alaska Airlines
Tue, Oct 20 - Sat, Oct 24
Alaska Airlines Logo
2:11 pm - 11:50 pm
SAN
-
BIL
8h 39m
2 stops
Alaska Airlines Logo
3:44 pm - 8:18 pm
BIL
-
SAN
5h 34m
1 stop
$369Alaska Airlines
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.

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

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 Billings departing in October.

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 August, where tickets cost $284 (return) on average. On the other hand, the most expensive months are September and July, where the average cost of round-trip tickets is $558 and $551 respectively.

Good to know

Low seasonApril
Cheapest flight$181
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 27% 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 5 days, the lowest price for a flight from San Diego to Billings was $181 for a one-way ticket and $266 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, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Billings are Delta and Alaska Airlines. With an average price for the route of $368 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 $348 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.
7.9
Alaska AirlinesOverall score based on 12517 reviews
7.1Food
8.1Boarding
8.5Crew
7.0Entertainment
7.8Comfort
Airline reviews

Short trip, was nice to have a drink on the short flight still.

10.0 ExcellentAnonymous, Jun 2026
SAN - MFR
Read more Alaska Airlines reviews

Short trip, was nice to have a drink on the short flight still.

Flight got delayed like 5 times, then they put and ada passenger in the back of the plane.

Flight delayed no communication. The gate was changed so many times.

Alaska is by far the best airline to fly with 😍

More efficient with checking lines and boarding/checking bags when needed.

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

I was on flight #3022 departed from San Diego, California to Medford, Oregon. I had Denise & Damaris as my flight attendants. I didn’t have much interaction with Damaris, but I did with Denise who had, this calm, cool collective voice when she spoke about the emergency exit plans before takeoff. I travel often and I’ve never met a flight attendant that can put you at ease. I felt she respects and takes pride in her position and more airlines need to adopt the integrity and respect that she has for Alaska Airlines. Debbie

All airlines should board planes back to front, instead of catering to higher priced tickets. The boarding groups are inefficient and delay takeoff time

Luggage was severely damaged. Flight was late for several hours

The ticketing counter in SD was a mess. The lady handling the First-Class check-in seemed overwhelmed until a supervisor replaced her. It took almost 20 minutes to get once couple checked in, and then she started walking around the counters while 7 people just stood in line. Once her supervisor arrived, she announced she was going on break, never to engage with customers again.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

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

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

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!

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

N Everything was perfect from boarding to assistance to baggage in Tampa

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

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

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

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

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

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

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

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

Information on your arrival and departure airports