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

For as low as $254, Alaska Airlines can have you in Great Falls from San Diego in 25h 59m. 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 64% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

If weather is an important factor for your trip to Great Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest time of day to fly from SAN to GTF?

When flying from San Diego to Great Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$115+ Flights from San Diego to Great Falls

Q: How much does it cost to fly round-trip from San Diego to Great Falls?

Airfare is below average for this route at the moment. San Diego to Great Falls flights typically cost between $278 and $463 in February. The cheapest round-trip price found within the last 3 days was $254 on Alaska Airlines (Feb 3-Feb 7).

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Cheap flight deals from San Diego to Great Falls

Best flights from San Diego to Great Falls
Discover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Tue 2/32:20 pmSAN - GTF

1 stop25h 59mAlaska Airlines

Sat 2/75:59 pmGTF - SAN

1 stop22h 30mAlaska Airlines

Deal found 12/28

$254

Wed 1/146:30 amSAN - GTF

1 stop6h 18mUnited Airlines

Sun 1/186:10 amGTF - SAN

1 stop7h 49mUnited Airlines

Deal found 12/30

$562

Mon 1/128:09 pmSAN - GTF

2 stops20h 10mAlaska Airlines

Fri 1/165:59 pmGTF - SAN

2 stops22h 22mAlaska Airlines

Deal found 12/27

$553

Wed 1/149:17 amSAN - GTF

2 stops31h 02mAlaska Airlines

Sun 1/185:59 pmGTF - SAN

1 stop6h 10mAlaska Airlines

Deal found 12/30

$563

Last-minute flights from San Diego to Great Falls
Discover last-minute flight deals from San Diego to Great Falls. Data last updated December 30, 2025 and is based on user searches.

Wed 1/146:30 amSAN - GTF

1 stop6h 18mUnited Airlines

Sun 1/186:10 amGTF - SAN

1 stop7h 49mUnited Airlines

Deal found 12/30

$562

Wed 1/149:17 amSAN - GTF

2 stops31h 02mAlaska Airlines

Sun 1/185:59 pmGTF - SAN

1 stop6h 10mAlaska Airlines

Deal found 12/30

$563

Wed 1/146:35 amSAN - GTF

2 stops9h 55mDelta

Sun 1/185:30 amGTF - SAN

2 stops11h 10mDelta

Deal found 12/30

$595

One-way flights from San Diego to Great Falls
Search for one-way flight options from San Diego to Great Falls. Find affordable one-way fares based on user searches. Data last updated December 30, 2025.

Thu 2/122:38 pmSAN - GTF

1 stop18h 14mMultiple Airlines

Deal found 12/29

$115

Wed 4/16:32 amSAN - GTF

1 stop5h 59mUnited Airlines

Deal found 12/30

$152

Thu 4/26:15 amSAN - GTF

1 stop9h 11mAlaska Airlines

Deal found 12/29

$158

Fri 4/39:03 pmSAN - GTF

2 stops18h 23mAlaska Airlines

Deal found 12/29

$191

Fri 5/297:17 pmSAN - GTF

2 stops21h 55mAlaska Airlines

Deal found 12/30

$223

Thu 4/26:20 amSAN - GTF

3 stops13h 57mUnited Airlines

Deal found 12/29

$369

Fri 4/36:20 amSAN - GTF

3 stops13h 57mUnited Airlines

Deal found 12/30

$405

Wed 4/18:15 amSAN - GTF

3 stops55h 11mMultiple Airlines

Deal found 12/30

$470

Find flight deals from San Diego to Great Falls

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$254 (Alaska Airlines)
One-way from	$115 (Kiwi.com)
Popular in	November
Cheapest in	March
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. 21% potential increase in price ($123 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Tue 2/3

2:20 pm-5:19 pm

1 stop25h 59m

Great Falls

Sat 2/7

5:59 pm-3:29 pm

1 stop22h 30m

$254

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Mon 1/12

8:09 pm-5:19 pm

2 stops20h 10m

Great Falls

Fri 1/16

5:59 pm-3:21 pm

2 stops22h 22m

$553

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 1/14

6:30 am-1:48 pm

1 stop6h 18m

Great Falls

Sun 1/18

6:10 am-12:59 pm

1 stop7h 49m

$562

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 1/14

9:17 am-5:19 pm

2 stops31h 02m

Great Falls

Sun 1/18

5:59 pm-11:09 pm

1 stop6h 10m

$563

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 2/12

2:38 pm-9:52 am

1 stop18h 14m

$115

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 4/1

6:32 am-1:31 pm

1 stop5h 59m

$152

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Thu 4/2

6:15 am-4:26 pm

1 stop9h 11m

$158

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 4/3

6:15 am-4:26 pm

1 stop9h 11m

$158

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Fri 5/29

10:52 am-6:12 pm

1 stop6h 20m

$169

San DiegoGreat Falls

SAN - GTF

SANGTF

San Diego

Wed 4/1

8:05 pm-4:26 pm

2 stops19h 21m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Compare providers for flights from San Diego to Great Falls

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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.

How much does it cost to fly round-trip from San Diego to Great Falls?

Reviews of airlines servicing Great Falls

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

8,013 reviews

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

8,013 reviews

Delta

7.9

Good

8,013 reviews

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

9,124 reviews

Delta

7.9

Good

8,013 reviews

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

How long is the flight from San Diego to Great Falls?
For as low as $254, Alaska Airlines can have you in Great Falls from San Diego in 25h 59m. 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 64% 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

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Top 2 airlines flying from San Diego to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$199	Average$576	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$278	Average$374	FlexibilityNo cancel fee	On-timeN/A

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$115+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Great Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from San Diego to Great Falls

Best flights from San Diego to Great FallsDiscover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Discover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Find flight deals from San Diego to Great Falls

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Great Falls that are best for you.

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.

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.

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?

How much does it cost to fly round-trip from San Diego to Great Falls?

Reviews of airlines servicing Great Falls

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.

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?

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

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

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

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

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

Traveling to a place near Great Falls?

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Top 2 airlines flying from San Diego to Great Falls

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Best flights from San Diego to Great Falls
Discover carefully curated flight deals from San Diego to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.