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$308+ Cheap flights from San Francisco to Casper (SFO - CPR)

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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CPR
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheap flight deals from San Francisco to Casper

Cheapest flights from San Francisco to Casper
Explore the most affordable flight options available from San Francisco to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2026.

This United Airlines deal was found by Cheapflights users on 4/19. 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.
Wed 8/266:15 am
SFO
-
CPR
1 stop5h 30m
United Airlines
Sun 8/305:15 am
CPR
-
SFO
1 stop5h 06m
United Airlines
Deal found 4/19$328
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 5/234:23 pm
SFO
-
CPR
1 stop4h 42m
United Airlines
Sat 5/306:13 pm
CPR
-
SFO
1 stop5h 43m
United Airlines
Deal found 4/20$408
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Sat 5/96:45 am
SFO
-
CPR
1 stop4h 56m
United Airlines
Tue 5/126:10 pm
CPR
-
SFO
1 stop5h 32m
United Airlines
Deal found 4/19$423
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 6/65:00 am
SFO
-
CPR
1 stop8h 40m
United Airlines
Sat 6/136:13 pm
CPR
-
SFO
1 stop5h 43m
United Airlines
Deal found 4/20$444
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Wed 4/295:00 am
SFO
-
CPR
1 stop6h 46m
United Airlines
Sun 5/35:25 am
CPR
-
SFO
1 stop5h 10m
United Airlines
Deal found 4/21$468

Find flight deals from San Francisco to Casper

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Casper (CPR). 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 April 22, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$328
(United Airlines)

One-way from

$308
(United Airlines)

Popular in

May

Cheapest in

October

Average price

$268
Provider with most accurate pricing for San Francisco-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Casper Natrona County flights.
Search Deals
From San Francisco to Casper Natrona County
Search Deals
One-way flight from San Francisco to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Casper 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 April 22, 2026.
Use the filters below to find and compare flights from San Francisco to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Sat 5/23

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Sat 5/30

9:26 am-5:30 pm

1 stop9h 04m

$408

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Sat 5/9

5:00 am-10:48 am

1 stop4h 48m

Casper Natrona County

Tue 5/12

7:10 am-3:31 pm

1 stop9h 21m

$408

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Sat 6/6

5:00 am-2:40 pm

1 stop8h 40m

Casper Natrona County

Sat 6/13

6:13 pm-10:56 pm

1 stop5h 43m

$444
Quickest round-trip

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Wed 4/29

5:00 am-12:46 pm

1 stop6h 46m

Casper Natrona County

Sun 5/3

5:25 am-9:35 am

1 stop5h 10m

$468

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Sat 6/20

5:00 am-12:42 pm

1 stop6h 42m

Casper Natrona County

Sat 6/27

8:45 am-3:09 pm

1 stop7h 24m

$664
Cheapest one-way
Quickest one-way

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Tue 5/26

10:40 am-5:29 pm

1 stop5h 49m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Francisco-Casper flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Francisco-Casper flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Francisco-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Casper flights, Cheapflights users trust Expedia the most. Expedia 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 Francisco-Casper 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 Francisco to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from San Francisco 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.

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. 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 Casper. Reviews last updated April 22, 2026.
See what other customers who have flown with United Airlines from San Francisco to Casper have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,625 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,625 reviews
United Airlines
7.4
Good
9,625 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Casper. 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 Francisco to Casper?

    There are many flights that can get you from San Francisco to Casper in 6h 42m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 913 mi.

  • What is the cheapest airline to fly from San Francisco to Casper round-trip?

    Our cheapest airline available from San Francisco to Casper is United Airlines. Our recent data shows that you can find tickets from as low as $268 on this airline. You may be able to fly from San Francisco to Casper for 42% less than the average price by searching for this airline.

  • Can I find deals for flights from San Francisco to Casper that include hotel bookings?

    Yes. In addition to deals on San Francisco to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Casper?

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

  • Can I find deals for business class flights from San Francisco to Casper?

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

See more FAQs

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Top airline flying from San Francisco to Casper

Discover the top airline that operate flights from San Francisco to Casper. 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 April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$388FlexibilityNo cancel feeOn-time69%

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