Cheap flights from Cincinnati to Seattle from $126

In general, February is the cheapest month to fly from Cincinnati to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $235. If you don’t want to visit Seattle in February, then you should wait until January to fly from Cincinnati, when ticket prices are also cheap, with an average price of $248.

On average, the least expensive day to fly to Seattle from Cincinnati is on a Friday. momondo users have found tickets for Friday departures for as low as $408. 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 Cincinnati because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $530.

Flying to Seattle from Cincinnati in the evening is the least expensive time of day to depart. momondo users have found prices as low as $428 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $471. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Cincinnati Cinci./N. Kentucky to Seattle/Tacoma Intl for the best Cincinnati Cinci./N. Kentucky - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $343 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Cincinnati for as low as $326 on momondo.

There are 4 cabin classes available to choose from on Cincinnati to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, United Airlines, and Delta are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Seattle/Tacoma Intl

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Seattle from Cincinnati according to our data. Alaska Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $202.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 7h 50m.

Dallas (DFW) has the shortest average layover time for this route: 1h 20m.

As of June 2026, 2 flights take off from Cincinnati and land in Seattle each day. The most common flight departure time for this route is 6:00AM, with 60% of daily flights taking off at noon.

The number of flights available between Cincinnati and Seattle is 18 per week as of June 2026. The most frequent departure day is Thu, with 33% of weekly flights leaving on this day.