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$318+ Cheap flights from San Francisco to Casper (SFO - CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CPR
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap 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 August 20, 2025.

Round-trip from

$318
(United Airlines)

Popular in

May

Cheapest in

January

Average price

$371
From San Francisco to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find 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 August 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 9/232:34 pmSFO - CPR
1 stop6h 40mUnited Airlines
Tue 9/306:00 pmCPR - SFO
1 stop5h 57mUnited Airlines
Deal found 8/18$318
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Fri 9/55:00 amSFO - CPR
1 stop4h 50mUnited Airlines
Tue 9/308:55 amCPR - SFO
1 stop9h 41mUnited Airlines
Deal found 8/19$374
This United Airlines deal was found by Cheapflights users on 8/18. 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 8/275:00 amSFO - CPR
1 stop4h 50mUnited Airlines
Sat 8/303:11 pmCPR - SFO
1 stop6h 52mUnited Airlines
Deal found 8/18$428

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 August 20, 2025.
Use the filters below to find and compare flights from San Francisco to Casper that are best for you.

Fly from

San Francisco

Fly to

Casper

Route

Depart

Return

Price

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Tue 9/23

2:34 pm-10:14 pm

1 stop6h 40m

Casper Natrona County

Tue 9/30

6:00 pm-10:57 pm

1 stop5h 57m

$318

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Fri 9/5

5:00 am-10:50 am

1 stop4h 50m

Casper Natrona County

Tue 9/30

8:55 am-5:36 pm

1 stop9h 41m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Casper

What is the cheapest time of day to fly from SFO to CPR?

Find hourly flight availability from San Francisco to Casper. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

One of the essential ways to save on airfare from San Francisco to Casper is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 47% on airfare.

How much does it cost to fly round-trip from San Francisco to Casper?

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 August 20, 2025.
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
8,928 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

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
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

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 40m. 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 $298 on this airline. You may be able to fly from San Francisco to Casper for 37% 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.

  • What is the cheapest month to book a flight from San Francisco to Casper?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Casper (average of $348). Flying from San Francisco to Casper in June is currently the most expensive (average of $504). 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 Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins

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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$490FlexibilityNo cancel feeOn-time69%

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