Cheap flights from Seattle to Manchester from $318

The cheapest month to fly to Manchester from Seattle is in November. Flight prices, which tend to average around $572, are often lower during this time because this is during the off-season. If you don’t want to visit Manchester in November, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $641.

You are more likely to see cheaper flights to Manchester from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Manchester for around $803 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Manchester from Seattle for as low as $551 on momondo.

You could potentially save up to 10% on your flight if you consider stops on a Seattle to Manchester flight.

As of May 2026, prices for Seattle to Manchester flights are approximately 48% cheaper when compared to flights at the same time last year.

United Airlines and Aer Lingus are the most popular carriers operating from Seattle/Tacoma Intl to Manchester

British Airways, Icelandair and Aer Lingus are the top three most popular airlines that fly to Manchester from Seattle according to our data. British Airways is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Manchester. Keep in mind that there are 6 different airlines that fly to Manchester on a routine basis, so you have a few additional options to choose from.

Dublin (DUB) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $557.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 12h 06m.

Paris (CDG) has the shortest average layover time for this route: 1h 48m.