What are the cheapest airlines to fly from Ireland to Delaware one-way?

The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £346. However, be on the lookout for offers from Finnair and Scandinavian Airlines, as they are both options that can get you from Ireland to Delaware for a low price.

How far in advance should I book a flight from Ireland to Delaware?

To save on the cost of your flight from Ireland to Delaware, book at least 58 days before your planned departure. Booking around this time can save you about 63% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £415 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £561.

What is the cheapest month to fly from Ireland to Delaware?

The best pricing can be found in the month of April. Prices to Delaware from Ireland average £459. You can even find prices in April for less than £459, as users have found deals to Delaware from as low as £325. The month of July appears to be one of the more expensive times to travel to Delaware from Ireland. Flying in the targeted month can save you up to 20%.

What is the cheapest time of day to fly from IE to DE?

When flying from Ireland to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Ireland to Delaware that include hotel bookings?

Yes. In addition to deals on Ireland to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ireland to Delaware?

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

Can I find deals for business class flights from Ireland to Delaware?

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

£571+ Flights from Ireland to Delaware

Cheap flight deals from Ireland to Delaware

Round-trip from	£370
One-way from	£346
Popular in	July
Cheapest in	April
Average price	£516

British Airways
3/9-21/9
1 total stop
38h 10m total
Ireland to Delaware

Search Deals

JetBlue
25/6
1 total stop
12h 55m total
Ireland to Delaware

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£48 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Ireland to Delaware

Cheapest flights from Ireland to Delaware
Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Mon 22/1220:30DUB - PHL

1 stop21h 40mBritish Airways

Mon 5/118:40PHL - DUB

1 stop10h 10mBritish Airways

Deal found 18/6£369

Wed 3/909:30DUB - PHL

Nonstop7h 15mFinnair

Sun 21/918:45PHL - DUB

Nonstop6h 45mFinnair

Deal found 17/6£382

Wed 12/1111:30DUB - PHL

Nonstop7h 25mAmerican Airlines

Sun 30/1121:10PHL - DUB

Nonstop6h 30mAmerican Airlines

Deal found 17/6£388

Sun 24/817:25DUB - PHL

1 stop24h 45mMultiple Airlines

Wed 3/918:50PHL - DUB

Nonstop6h 40mMultiple Airlines

Deal found 17/6£389

Thu 16/1009:50DUB - PHL

1 stop17h 39mUnited Airlines

Wed 5/1120:00PHL - DUB

1 stop9h 05mUnited Airlines

Deal found 16/6£391

Mon 22/1209:00DUB - PHL

2 stops34h 50mAir Canada

Mon 5/115:30PHL - DUB

2 stops34h 40mAir Canada

Deal found 17/6£396

Tue 12/816:20DUB - PHL

Nonstop7h 40mAer Lingus

Tue 26/820:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 16/6£414

Thu 16/1012:00DUB - PHL

1 stop10h 17mDelta

Wed 5/1107:30PHL - DUB

1 stop19h 15mDelta

Deal found 17/6£429

Wed 12/1118:35DUB - PHL

2 stops31h 46mSWISS

Sun 30/1117:35PHL - DUB

2 stops13h 55mSWISS

Deal found 17/6£470

Wed 9/713:20DUB - PHL

2 stops13h 19mKLM

Sun 13/717:22PHL - DUB

1 stop12h 23mKLM

Deal found 16/6£482

Sat 5/710:00DUB - PHL

1 stop11h 16mAir France

Sat 19/713:25PHL - DUB

2 stops13h 50mAir France

Deal found 16/6£488

Thu 7/809:30SNN - PHL

1 stop20h 00mUnited Airlines

Wed 13/808:15PHL - SNN

1 stop18h 15mUnited Airlines

Deal found 17/6£490

Best flights from Ireland to Delaware
Discover carefully curated flight deals from Ireland to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 June 2025.

Wed 3/909:30DUB - PHL

Nonstop7h 15mBritish Airways

Sun 21/919:50PHL - DUB

1 stop30h 55mBritish Airways

Deal found 17/6£370

Wed 3/909:30DUB - PHL

Nonstop7h 15mFinnair

Sun 21/918:45PHL - DUB

Nonstop6h 45mFinnair

Deal found 17/6£382

Wed 12/1111:30DUB - PHL

Nonstop7h 25mAmerican Airlines

Sun 30/1121:10PHL - DUB

Nonstop6h 30mAmerican Airlines

Deal found 17/6£388

Sun 24/817:25DUB - PHL

1 stop24h 45mMultiple Airlines

Wed 3/918:50PHL - DUB

Nonstop6h 40mMultiple Airlines

Deal found 17/6£389

Thu 16/1009:50DUB - PHL

1 stop17h 39mUnited Airlines

Wed 5/1120:00PHL - DUB

1 stop9h 05mUnited Airlines

Deal found 16/6£391

Tue 12/816:20DUB - PHL

Nonstop7h 40mAer Lingus

Tue 26/820:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 16/6£414

Thu 16/1012:00DUB - PHL

1 stop10h 17mDelta

Wed 5/1107:30PHL - DUB

1 stop19h 15mDelta

Deal found 17/6£429

Wed 12/1118:35DUB - PHL

2 stops31h 46mSWISS

Sun 30/1117:35PHL - DUB

2 stops13h 55mSWISS

Deal found 17/6£470

Wed 9/713:20DUB - PHL

2 stops13h 19mKLM

Sun 13/717:22PHL - DUB

1 stop12h 23mKLM

Deal found 16/6£482

Sat 5/710:00DUB - PHL

1 stop11h 16mAir France

Sat 19/713:25PHL - DUB

2 stops13h 50mAir France

Deal found 16/6£488

Fri 11/710:40DUB - PHL

1 stop11h 05mJetBlue

Mon 14/717:40PHL - DUB

1 stop10h 20mJetBlue

Deal found 17/6£520

Sun 24/821:45DUB - PHL

3 stops29h 35mScandinavian Airlines

Wed 3/910:43PHL - DUB

2 stops26h 32mScandinavian Airlines

Deal found 16/6£585

Direct flights from Ireland to Delaware
Explore direct flight options from Ireland to Delaware based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 June 2025.

Wed 3/909:30DUB - PHL

Nonstop7h 15mFinnair

Sun 21/918:45PHL - DUB

Nonstop6h 45mFinnair

Deal found 17/6£382

Wed 12/1111:30DUB - PHL

Nonstop7h 25mAmerican Airlines

Sun 30/1121:10PHL - DUB

Nonstop6h 30mAmerican Airlines

Deal found 17/6£388

Tue 12/816:20DUB - PHL

Nonstop7h 40mAer Lingus

Tue 26/820:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 16/6£414

Sat 5/709:30DUB - PHL

Nonstop7h 15mIberia

Sat 19/718:45PHL - DUB

Nonstop6h 45mIberia

Deal found 18/6£753

Mon 8/909:30DUB - PHL

Nonstop7h 15mMultiple Airlines

Mon 22/918:45PHL - DUB

Nonstop6h 45mMultiple Airlines

Deal found 16/6£1,851

Last-minute flights from Ireland to Delaware
Discover last-minute flight deals from Ireland to Delaware. Data last updated 18 June 2025 and is based on user searches.

Mon 23/609:20DUB - PHL

2 stops20h 25mUnited Airlines

Mon 30/608:15PHL - DUB

2 stops17h 55mUnited Airlines

Deal found 16/6£473

Mon 23/609:30DUB - PHL

Nonstop7h 10mFinnair

Mon 30/618:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 16/6£476

Tue 24/609:30SNN - PHL

1 stop13h 01mUnited Airlines

Thu 3/706:30PHL - SNN

1 stop20h 00mUnited Airlines

Deal found 17/6£560

Wed 25/621:15DUB - PHL

3 stops29h 21mMultiple Airlines

Sun 29/610:35PHL - DUB

2 stops27h 50mMultiple Airlines

Deal found 16/6£3,296

Thu 26/610:00DUB - PHL

1 stop11h 16mKLM

Fri 4/712:52PHL - DUB

1 stop16h 08mKLM

Deal found 17/6£496

Sat 28/611:00DUB - PHL

1 stop18h 59mDelta

Mon 21/713:25PHL - DUB

2 stops13h 50mDelta

Deal found 16/6£495

Sat 28/617:30SNN - PHL

1 stop24h 30mBritish Airways

Sun 6/719:55PHL - SNN

1 stop10h 25mBritish Airways

Deal found 17/6£758

Sun 29/609:30DUB - PHL

Nonstop7h 10mBritish Airways

Sat 5/718:30PHL - DUB

1 stop32h 15mBritish Airways

Deal found 18/6£410

Thu 3/709:30DUB - PHL

Nonstop7h 10mFinnair

Wed 9/718:45PHL - DUB

Nonstop6h 45mFinnair

Deal found 16/6£430

Sat 5/710:00DUB - PHL

1 stop11h 16mAir France

Sat 19/713:25PHL - DUB

2 stops13h 50mAir France

Deal found 16/6£488

Sat 5/712:40DUB - PHL

1 stop12h 31mAmerican Airlines

Sat 19/718:45PHL - DUB

Nonstop6h 45mAmerican Airlines

Deal found 16/6£621

Wed 9/708:55DUB - PHL

2 stops17h 44mDelta

Mon 14/713:25PHL - DUB

2 stops13h 50mDelta

Deal found 16/6£480

One-way flights from Ireland to Delaware
Search for one-way flight options from Ireland to Delaware. Find affordable one-way fares based on user searches. Data last updated 18 June 2025.

Wed 25/610:40DUB - PHL

1 stop12h 55mJetBlue

Deal found 16/6£346

Thu 24/716:00DUB - PHL

1 stop12h 14mMultiple Airlines

Deal found 17/6£470

Mon 21/709:30DUB - PHL

Nonstop7h 15mFinnair

Deal found 17/6£534

Mon 21/721:10DUB - PHL

3 stops29h 24mScandinavian Airlines

Deal found 17/6£1,873

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 3/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Sun 21/9

19:50-07:45

1 stop30h 55m

£370

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 3/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Sun 21/9

18:45-06:30

Nonstop6h 45m

£382

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 12/11

11:30-13:55

Nonstop7h 25m

Philadelphia

Sun 30/11

21:10-08:40

Nonstop6h 30m

£388

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Sun 24/8

17:25-13:10

1 stop24h 45m

Philadelphia

Wed 3/9

18:50-06:30

Nonstop6h 40m

£389

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 16/10

09:50-22:29

1 stop17h 39m

Philadelphia

Wed 5/11

20:00-10:05

1 stop9h 05m

£391

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Tue 12/8

16:20-19:00

Nonstop7h 40m

Philadelphia

Tue 26/8

20:30-08:10

Nonstop6h 40m

£414

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 16/10

12:00-17:17

1 stop10h 17m

Philadelphia

Wed 5/11

07:30-07:45

1 stop19h 15m

£429

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 12/11

18:35-21:21

2 stops31h 46m

Philadelphia

Sun 30/11

17:35-12:30

2 stops13h 55m

£470

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 9/7

13:20-21:39

2 stops13h 19m

Philadelphia

Sun 13/7

17:22-10:45

1 stop12h 23m

£482

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Sat 5/7

10:00-16:16

1 stop11h 16m

Philadelphia

Sat 19/7

13:25-08:15

2 stops13h 50m

£488

Flights are sorted by cheapest return flights first.

Deals found on 16/6

Showing 1-10 of 20 results

Best time to book a flight from Ireland to Delaware

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

Estimated return 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 Ireland to Delaware

Rainfall in Delaware by month

In terms of precipitation, rainfall in Delaware ranges from 73.0 - 108.0 inches per month. July is typically the wettest month, when rainfall can reach 108.0 mm. February is typically the driest time to visit Delaware when rainfall is around 73.0 mm.

Temperature in Delaware by month

If weather is an important factor for your trip to Delaware, 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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Delaware

Read through reviews of airlines operating flights from Ireland to Delaware, such as Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,964 reviews

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,364 reviews

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,292 reviews

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air France

7.5

Good

1,467 reviews

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,632 reviews

Delta

8.0

Very Good

7,964 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Ireland to Delaware one-way?
The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £346. However, be on the lookout for offers from Finnair and Scandinavian Airlines, as they are both options that can get you from Ireland to Delaware for a low price.
Can I find deals for flights from Ireland to Delaware that include hotel bookings?
Yes. In addition to deals on Ireland to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Delaware?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Delaware.
Can I find deals for business class flights from Ireland to Delaware?
Yes. Cheapflights offers flight deals from Ireland to Delaware 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ireland to Delaware

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Heathrow to Newark flights

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London City to LaGuardia flights

Gatwick to Boston flights

London City to Miami flights

Gatwick to Orlando flights

Luton to Stewart flights

Gatwick to Stewart flights

London City to Los Angeles flights

Luton to Newark flights

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Heathrow to Atlanta flights

Gatwick to Los Angeles flights

Heathrow to Baltimore flights

London City to Orlando flights

Stansted to Stewart flights

Heathrow to Hobby flights

Manchester to Newark flights

Heathrow to Dallas/Fort Worth flights

Heathrow to Tampa flights

Manchester to LaGuardia flights

Stansted to Miami flights

Heathrow to Ontario flights

London City to Boston flights

Edinburgh to John F Kennedy Intl flights

Edinburgh to Newark flights

Luton to Los Angeles flights

Heathrow to George Bush Intcntl flights

Heathrow to Santa Ana flights

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Direct flights to United States

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to Delaware?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Delaware from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Delaware?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ireland to Delaware for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ireland to Delaware with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Delaware flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to Delaware become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Delaware from Ireland today and book when prices fit your budget.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ireland to Delaware from £346

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Delaware

Keep the following information in mind while searching for Ireland to Delaware flight deals. Data was last updated 18 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ireland to Delaware

Cheapest flights from Ireland to DelawareExplore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ireland to Delaware

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

Cheapflights Insights

Everything you need to know about your flight from Ireland to Delaware

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

Reviews of airlines servicing Delaware

Read through reviews of airlines operating flights from Ireland to Delaware, such as Delta, KLM and Finnair. Users have also rated airlines 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 Ireland to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Ireland to Delaware one-way?

Can I find deals for flights from Ireland to Delaware that include hotel bookings?

How can I find direct flights from Ireland to Delaware?

Can I find deals for business class flights from Ireland to Delaware?

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 Ireland to Delaware

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Delaware?

Why should you use Cheapflights to find cheap flight tickets from Ireland to Delaware?

Can Cheapflights find flights from Ireland to Delaware with no change fees?

Can Cheapflights notify me if prices for flights from Ireland to Delaware become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ireland to Delaware
Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2025.