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Great Falls

$169+ Cheap flights from San Diego to Great Falls (SAN - GTF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — GTF
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Cheap flight deals from San Diego to Great Falls

Cheapest flights from San Diego to Great Falls
Explore the most affordable flight options available from San Diego to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This Delta deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:50 amSAN - GTF
1 stop6h 38mDelta
Fri 12/266:18 pmGTF - SAN
1 stop6h 41mDelta
Deal found 12/8$738
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:03 pmSAN - GTF
1 stop4h 27mDelta
Fri 12/266:18 pmGTF - SAN
1 stop6h 41mDelta
Deal found 12/7$797
This United Airlines deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:10 pmSAN - GTF
1 stop5h 36mUnited Airlines
Sun 12/286:15 amGTF - SAN
1 stop28h 24mUnited Airlines
Deal found 12/6$807
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:03 pmSAN - GTF
1 stop4h 27mDelta
Tue 12/306:18 pmGTF - SAN
1 stop6h 41mDelta
Deal found 12/7$886
This United Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:40 pmSAN - GTF
2 stops28h 06mUnited Airlines
Tue 12/302:35 pmGTF - SAN
1 stop25h 26mUnited Airlines
Deal found 12/7$889
This United Airlines deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:30 amSAN - GTF
1 stop6h 09mUnited Airlines
Fri 12/266:15 amGTF - SAN
1 stop12h 19mUnited Airlines
Deal found 12/6$897

Find flight deals from San Diego to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$306
(Alaska Airlines)

One-way from

$169
(Delta)

Popular in

November

Cheapest in

January

Average price

$595
Provider with most accurate pricing for San Diego-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Great Falls flights.
Search Deals
From San Diego to Great Falls
Search Deals
One-way flight from San Diego to Great Falls
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Great Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from San Diego to Great Falls that are best for you.

Fly from

San Diego

Fly to

Great Falls

Route

Depart

Return

Price

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 1/8

9:37 am-5:19 pm

1 stop6h 42m

Great Falls

Mon 1/12

5:59 pm-9:50 am

2 stops16h 51m

$306

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 12/19

9:50 am-5:28 pm

1 stop6h 38m

Great Falls

Fri 12/26

6:18 pm-11:59 pm

1 stop6h 41m

$738

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Mon 12/22

5:03 pm-10:30 pm

1 stop4h 27m

Great Falls

Fri 12/26

6:18 pm-11:59 pm

1 stop6h 41m

$797

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 4/2

6:15 am-12:24 pm

1 stop5h 09m

$169

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 4/1

6:25 am-1:27 pm

1 stop6h 02m

$169

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 4/1

6:15 am-12:24 pm

1 stop5h 09m

$169

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 4/3

6:15 am-12:24 pm

1 stop5h 09m

$169

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 4/2

9:59 pm-3:20 pm

2 stops16h 21m

$253

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 4/3

12:30 pm-3:20 pm

2 stops25h 50m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Compare providers for flights from San Diego to Great Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Great Falls in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Great Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Great Falls

What is the cheapest month to book a flight from San Diego to Great Falls?

Currently, March is the cheapest month in which you can book a flight from San Diego to Great Falls (average of $123). Flying from San Diego to Great Falls in November is currently the most expensive (average of $514). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated December 9, 2025.
Read reviews from past customers who have flown Delta and United Airlines from San Diego to Great Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
9,089 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from San Diego to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Great Falls?

    For as low as $306, Alaska Airlines can have you in Great Falls from San Diego in 6h 42m. Airlines will cover a distance of 1063 mi.

  • What are the cheapest airlines flying from San Diego to Great Falls round-trip?

    Currently priced at $159, Delta will fly you from San Diego to Great Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $199. Delta is 62% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from San Diego to Great Falls that include hotel bookings?

    Yes. In addition to deals on San Diego to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Great Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Great Falls.

  • Can I find deals for business class flights from San Diego to Great Falls?

    Yes. Cheapflights offers flight deals from San Diego to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Great Falls?

    Currently, March is the cheapest month in which you can book a flight from San Diego to Great Falls (average of $123). Flying from San Diego to Great Falls in November is currently the most expensive (average of $514). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Great Falls?

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Top 2 airlines flying from San Diego to Great Falls

Discover the top 2 airlines that operate flights from San Diego to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$199Average$576FlexibilityNo cancel feeOn-time69%
DeltaCheapest$266Average$374FlexibilityNo cancel feeOn-timeN/A

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