Cheap flights from Rapid City to Seattle from $139
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Seattle departing on 5/15. 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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How to get the cheapest flight ticket from Rapid City 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 typical price of a round-trip flight between Rapid City and Seattle?
What is the cheapest month to fly to Seattle?
In general, March is the cheapest month to fly from Rapid City to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $282. If you don’t want to visit Seattle in March, then you should wait until February to fly from Rapid City, when ticket prices are also cheap, with an average price of $328.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Rapid City is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $589. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Rapid City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $700.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Rapid City at noon is the least expensive time of day to depart. momondo users have found prices as low as $582 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $632. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Rapid City when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $509 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Rapid City for as low as $406 on momondo.
When to book flights from Rapid City to Seattle
Cheap Rapid City to Seattle (RAP to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Rapid City to Seattle
How far is Rapid City to Seattle/Tacoma Intl by plane?
The straight-line distance from Rapid City to Seattle/Tacoma Intl is 948.2 mi. By plane, this route typically takes 6h 00m.
When did momondo last update prices for flights from Rapid City Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Rapid City Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Rapid City Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Rapid City Airport to Seattle/Tacoma Intl Airport is 2 as of April 2025.
How old do you have to be to fly from Rapid City Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City 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 required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Rapid City to Seattle?
momondo data reveals that the most frequently booked airline on the route from Rapid City to Seattle is United Airlines, representing 90% of all bookings. The subsequent popular airline is Delta at 10%.
Best airlines flying from Rapid City to Seattle
Compare and see reviews for airlines that fly from Rapid City to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $258 | Free Cancellation | Rating 8.0 7,917 reviews | |||
| PriceFrom $343 | Free Cancellation | Rating 7.4 8,667 reviews |
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Rapid City to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rapid City to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Rapid City to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Rapid City which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Rapid City to Seattle?
Once you have performed a search for Rapid City to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Rapid City to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Rapid City to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.