$647+ Cheap flights from Donegal
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
CFN — OAK
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find flights from Donegal within your budget
Find flights departing from Donegal that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on September 7, 2026. In the last 7 days, Cheapflights users made a total of 7,457,451 searches
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DonegalSan Francisco
CFN Donegal - SFO San Francisco
CFNSFO
Donegal
Thu 11/26
2:30 pm-2:55 pm
2 stops32h 25m
San Francisco
Sun 11/29
5:25 pm-2:00 pm
2 stops36h 35m
$923
Sorted by cheapest first
Best time to book a flight from Donegal
Have a flexible travel schedule? Discover the best time to fly from Donegal with our price prediction graph.
CFN-OAK
CFN-SFO
CFN-BHX
CFN-MAN
CFN-LBA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Donegal
Get recent, data-driven insights about flights from Donegal including ideal travel times, pricing trends, and more.
CFN-OAK
CFN-SFO
CFN-BHX
CFN-MAN
CFN-LBA
No data available for this route at this time. Please check back soon.
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