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 $367 on this airline. You may be able to fly from San Francisco to Casper for 24% less than the average price by searching for this airline.

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 $500). 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.

What is the cheapest day to fly from San Francisco to Casper?

Travelers seeking maximum savings on their San Francisco to Casper flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Casper ranges from 0.5 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Casper when rainfall is around 0.5 in.

If weather is an important factor for your trip to Casper, 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 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 23.0 F).

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

Sunday flights are found to be more expensive to fly from San Francisco to Casper. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Casper.

What is the cheapest month to fly from San Francisco to Casper?

Flights from San Francisco to Casper lean towards being more expensive in May. Prices are generally better when you fly from San Francisco to Casper in January, with the cheapest ticket starting at $248.

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.

$265+ Flights from San Francisco to Casper

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Cheap flight deals from San Francisco to Casper

Round-trip from	$367 (United Airlines)
One-way from	$265 (United Airlines)
Popular in	May
Cheapest in	January
Average price	$383

From San Francisco to Casper Natrona County

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One-way flight from San Francisco to Casper Natrona County

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Highest demand for flights based on searches. 13% potential increase in price ($76 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 3, 2025.

Thu 7/103:50 pmSFO - CPR

1 stop5h 24mUnited Airlines

Wed 7/161:28 pmCPR - SFO

1 stop5h 15mUnited Airlines

Deal found 7/1

$367

Best flights from San Francisco to Casper
Discover carefully curated flight deals from San Francisco to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Thu 7/103:50 pmSFO - CPR

1 stop5h 24mUnited Airlines

Wed 7/161:28 pmCPR - SFO

1 stop5h 15mUnited Airlines

Deal found 7/1

$367

Last-minute flights from San Francisco to Casper
Discover last-minute flight deals from San Francisco to Casper. Data last updated July 3, 2025 and is based on user searches.

Thu 7/103:50 pmSFO - CPR

1 stop5h 24mUnited Airlines

Wed 7/161:28 pmCPR - SFO

1 stop5h 15mUnited Airlines

Deal found 7/1

$367

One-way flights from San Francisco to Casper
Search for one-way flight options from San Francisco to Casper. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Fri 8/12:30 pmSFO - CPR

1 stop6h 44mUnited Airlines

Deal found 7/1

$265

Cheapflights Fare Finder

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

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Thu 7/10

3:50 pm-10:14 pm

1 stop5h 24m

Casper Natrona County

Wed 7/16

1:28 pm-5:43 pm

1 stop5h 15m

$367

San FranciscoCasper

SFO - CPR

SFOCPR

San Francisco

Fri 8/1

2:30 pm-10:14 pm

1 stop6h 44m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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?

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.

Reviews of airlines servicing Casper

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

8,861 reviews

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

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

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

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 $367 on this airline. You may be able to fly from San Francisco to Casper for 24% 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 $500). 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 airline flying from San Francisco to Casper

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$298	Average$537	FlexibilityNo cancel fee	On-time69%

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$265+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Casper with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Francisco to Casper

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Francisco to Casper

Cheapest flights from San Francisco to CasperExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

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

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.

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 July 3, 2025.

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 July 3, 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.

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.

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

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

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

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

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

Traveling to a place near San Francisco?

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Alternative routes for San Francisco to Casper

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Top airline flying from San Francisco to Casper

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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 July 3, 2025.