In terms of precipitation, rainfall in Donegal ranges from 2.3 - 4.6 inches per month. October is typically the wettest month, when rainfall can reach 4.6 in. April is typically the driest time to visit Donegal when rainfall is around 2.3 in.

If weather is an important factor for your trip to Donegal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 57.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest time of day to fly from FR8 to CFN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Fremont to Donegal as you normally would.

What airport do you fly into for flights to Donegal from Fremont?

Donegal (CFN), located 28.5 mi from the city center, is the airport you fly into when you book flights from Fremont to Donegal. 0 airlines have flights to Donegal from Fremont on a regular basis. Booking flights from Fremont to Donegal should not be difficult; the airport handles an average of 0 inbound flights from Fremont per day.

Can I find deals for flights from Fremont to Donegal that include hotel bookings?

Yes. In addition to deals on Fremont to Donegal flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Fremont to Donegal?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Donegal.

Can I find deals for business class flights from Fremont to Donegal?

Yes. Cheapflights offers flight deals from Fremont to Donegal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,042+ Flights from Fremont to Donegal

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Cheap flight deals from Fremont to Donegal

Round-trip from	$1,042 (Gurufare)

From Fremont to Donegal

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Find flight deals from Fremont to Donegal

Cheapest flights from Fremont to Donegal
Explore the most affordable flight options available from Fremont to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Thu 8/285:40 pmSFO - CFN

1 stop12h 20mAer Lingus

Thu 9/112:30 pmCFN - SFO

1 stop33h 20mAer Lingus

Deal found 7/28

$1,042

Thu 8/285:40 pmSFO - CFN

1 stop18h 20mMultiple Airlines

Thu 9/117:55 amCFN - SFO

2 stops20h 58mMultiple Airlines

Deal found 7/28

$1,053

Best flights from Fremont to Donegal
Discover carefully curated flight deals from Fremont to Donegal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Thu 8/285:40 pmSFO - CFN

1 stop12h 20mAer Lingus

Thu 9/112:30 pmCFN - SFO

1 stop33h 20mAer Lingus

Deal found 7/28

$1,042

Thu 8/285:40 pmSFO - CFN

1 stop18h 20mMultiple Airlines

Thu 9/117:55 amCFN - SFO

2 stops20h 58mMultiple Airlines

Deal found 7/28

$1,053

Last-minute flights from Fremont to Donegal
Discover last-minute flight deals from Fremont to Donegal. Data last updated July 30, 2025 and is based on user searches.

Thu 7/315:40 pmSFO - CFN

1 stop18h 20mMultiple Airlines

Thu 8/72:30 pmCFN - SFO

2 stops55h 20mMultiple Airlines

Deal found 7/30

$1,699

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDonegal

SFO - CFN

SFOCFN

San Francisco

Thu 8/28

5:40 pm-2:00 pm

1 stop12h 20m

Donegal

Thu 9/11

2:30 pm-3:50 pm

1 stop33h 20m

$1,042

San FranciscoDonegal

SFO - CFN

SFOCFN

San Francisco

Thu 8/28

5:40 pm-8:00 pm

1 stop18h 20m

Donegal

Thu 9/11

7:55 am-8:53 pm

2 stops20h 58m

$1,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Fremont to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Fremont with our price prediction graph.

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.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Donegal

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Donegal

Read reviews from past customers who have flown Aer Lingus from Fremont to Donegal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.1

Good

1,191 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

Aer Lingus

7.1

Good

1,191 reviews

Aer Lingus

7.1

Good

1,191 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Jul 2025

LHR - DUB

Related info for your journey

What airport do you fly into for flights to Donegal from Fremont?
Donegal (CFN), located 28.5 mi from the city center, is the airport you fly into when you book flights from Fremont to Donegal. 0 airlines have flights to Donegal from Fremont on a regular basis. Booking flights from Fremont to Donegal should not be difficult; the airport handles an average of 0 inbound flights from Fremont per day.
Can I find deals for flights from Fremont to Donegal that include hotel bookings?
Yes. In addition to deals on Fremont to Donegal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Fremont to Donegal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Donegal.
Can I find deals for business class flights from Fremont to Donegal?
Yes. Cheapflights offers flight deals from Fremont to Donegal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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$1,042+ Cheap flights from Fremont, CA to Donegal (CFN)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Fremont to Donegal with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Fremont to Donegal

Keep the following information in mind while searching for Fremont to Donegal flight deals. Data was last updated July 30, 2025.

Round-trip from

Find flight deals from Fremont to Donegal

Cheapest flights from Fremont to DonegalExplore the most affordable flight options available from Fremont to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Fremont to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Fremont to Donegal that are best for you.

Best time to book a flight from Fremont to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Fremont with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Donegal

Reviews of airlines servicing Donegal

Read reviews from past customers who have flown Aer Lingus from Fremont to Donegal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Donegal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Donegal from Fremont?

Can I find deals for flights from Fremont to Donegal that include hotel bookings?

How can I find direct flights from Fremont to Donegal?

Can I find deals for business class flights from Fremont to Donegal?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Fremont to Donegal

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Cheapest flights from Fremont to Donegal
Explore the most affordable flight options available from Fremont to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.