Cheap flights from Casper to Seattle from $268
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Casper to Seattle departing on 8/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Casper to Seattle
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How to get the cheapest flight ticket from Casper to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, February is the cheapest month to fly from Casper to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $308. If you don’t want to visit Seattle in February, then you should wait until April to fly from Casper, when ticket prices are also cheap, with an average price of $343.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Casper is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $557. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Casper because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $718.
When to book flights from Casper to Seattle
Cheap Casper to Seattle (CPR to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Casper to Seattle
How far is Casper Natrona County to Seattle/Tacoma Intl by plane?
Casper Natrona County and Seattle/Tacoma Intl are 843.3 mi apart from one another. Flights usually cover this in 6h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Casper Natrona County Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Casper Natrona County Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Casper Natrona County Airport to Seattle/Tacoma Intl Airport?
As of July 2025, there is 1 operator available to choose from for flights from Casper Natrona County Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Casper Natrona County Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Casper to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Casper to Seattle is United Airlines (100% of total bookings).
Best airlines flying from Casper to Seattle
Compare and see reviews for airlines that fly from Casper to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $308 | Free Cancellation | Rating 7.4 8,844 reviews |
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Casper to Seattle?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Casper.
Can I find flights from Casper to Seattle with flexible booking policies on momondo?
Flights from Casper to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Casper to Seattle?
momondo helps you find the best flight between Casper and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Casper to Seattle right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Seattle from Casper. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.