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$688+ Cheap flights from Allentown (ABE) to Bulgaria

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SOF
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Allentown to Bulgaria

Keep the following information in mind while searching for Allentown to Bulgaria flight deals. Data was last updated August 1, 2025.

Round-trip from

$688
(United Airlines)
From Allentown-Bethlehem to Bulgaria
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Find flight deals from Allentown to Bulgaria

Best flights from Allentown to Bulgaria
Discover carefully curated flight deals from Allentown to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2025.

This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/156:44 amABE - SOF
2 stops33h 01mUnited Airlines
Mon 1/191:55 pmSOF - ABE
2 stops37h 48mUnited Airlines
Deal found 7/29$688

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Bulgaria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Allentown to Bulgaria that are best for you.

Fly from

Allentown

Fly to

Bulgaria

Route

Depart

Return

Price

AllentownSofia

ABE - SOF

ABESOF

Allentown-Bethlehem

Thu 1/15

6:44 am-10:45 pm

2 stops33h 01m

Sofia

Mon 1/19

1:55 pm-8:43 pm

2 stops37h 48m

$688

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Allentown to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Allentown 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 Allentown to Bulgaria

What is the cheapest month to book a flight from Allentown to Bulgaria?

Currently, November is the cheapest month in which you can book a flight from Allentown to Bulgaria (average of $632). Flying from Allentown to Bulgaria in June is currently the most expensive (average of $1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated August 1, 2025.
Read reviews from past customers who have flown United Airlines from Allentown to Bulgaria. 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.
United Airlines
7.4
Good
8,900 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Allentown to Bulgaria. 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 from for flights from Allentown to Bulgaria?

    Most people fly from Allentown-Bethlehem (ABE) if they book a flight from Allentown to Bulgaria. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • Can I find deals for flights from Allentown to Bulgaria that include hotel bookings?

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

  • How can I find direct flights from Allentown to Bulgaria?

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

  • Can I find deals for business class flights from Allentown to Bulgaria?

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

  • What is the cheapest month to book a flight from Allentown to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from Allentown to Bulgaria (average of $632). Flying from Allentown to Bulgaria in June is currently the most expensive (average of $1,187). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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