Cheap Flights from Donegal to Seattle
No deal from Donegal to Seattle has cleared our price bar yet. What we have seen on the route is below.
Across 3 months of observations from Donegal to Seattle, the lowest round-trip fare we recorded was $663, in October. The typical fare was $758. October was the cheapest month we saw and September the dearest.
The most recent price we saw on this route was $664 on Aer Lingus, seen Oct 17. It is an unverified observation and may have changed.
See every deal <a href="/from/donegal">from Donegal</a>, <a href="/to/seattle">to Seattle</a>, or the return direction <a href="/from/seattle/to/donegal">Seattle to Donegal</a>.
Latest price we saw: Donegal to Seattle
The most recent round-trip fare our sweep found on this route. It is not verified and may have changed since the date shown.
| From | Price | Per mile | Travel dates | Airline | Seen | Check price |
|---|---|---|---|---|---|---|
| Donegal (CFN) to Seattle (SEA) | $664 | 7.6¢ | Apr 8 – Apr 15 | Aer Lingus | Oct 17 | Check price |
Price history: Donegal to Seattle
What we observed by month, from our signals database. Unverified observations, not bookable prices.
| Month | Low | Typical | Sightings |
|---|---|---|---|
| Oct 2026 | $663 | $693 | 3 |
| Sep 2026 | $761 | $762 | 2 |
| Aug 2026 | $747 | $821 | 8 |
Frequently asked questions
How many flight deals from Donegal to Seattle are on Sparkflights right now?
There are 0 verified deals from Donegal to Seattle on the board right now. The list refreshes hourly.
What is the lowest price ever seen from Donegal to Seattle?
The lowest fare we've recorded from Donegal to Seattle is $663, based on 13 price observations over 3 months.
How much does a flight from Donegal to Seattle cost?
The typical round-trip fare we observed from Donegal to Seattle is $758, against a recorded low of $663. These are observations, not quotes.
When is the cheapest month to fly Donegal to Seattle?
October was the cheapest month we observed from Donegal to Seattle and September the dearest, over 3 months of data.
What is the current price from Donegal to Seattle?
The most recent fare our sweep saw from Donegal to Seattle is $664, on Oct 17. It is an unverified observation rather than a verified deal, so check it before booking.