Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Allentown to Bulgaria from $606

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Bulgaria departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Allentown to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
6:28 am - 2:05 pmABE-SOF
48h 37m2 stops
KLM Logo
7:00 am - 10:50 pmSOF-ABE
22h 50m2 stops
$606KLM
Find Deal
Thu, Jan 15 - Mon, Jan 19
KLM Logo
6:28 am - 2:05 pmABE-SOF
48h 37m2 stops
KLM Logo
7:00 am - 10:50 pmSOF-ABE
22h 50m2 stops
$607KLM
Find Deal
Thu, Jan 15 - Mon, Jan 19

KLM flights from Allentown to Bulgaria

Our best KLM deals on Allentown to Bulgaria flight tickets
KLM
Jan 15
ABE6:28 amAllentown-Bethlehem
48h 37m
2 stops
SOF2:05 pmSofia
Jan 19
SOF7:00 amSofia
22h 50m
2 stops
ABE10:50 pmAllentown-Bethlehem
$606
Find similar
KLM
Jan 15
ABE6:28 amAllentown-Bethlehem
48h 37m
2 stops
SOF2:05 pmSofia
Jan 19
SOF7:00 amSofia
22h 50m
2 stops
ABE10:50 pmAllentown-Bethlehem
$607
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Allentown to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownSofia

ABE - SOF

ABESOF

Allentown-Bethlehem

Thu 1/15

6:28 am-2:05 pm

2 stops48h 37m

Sofia

Mon 1/19

7:00 am-10:50 pm

2 stops22h 50m

$606

AllentownSofia

ABE - SOF

ABESOF

Allentown-Bethlehem

Thu 1/15

6:28 am-2:05 pm

2 stops48h 37m

Sofia

Mon 1/19

7:00 am-10:50 pm

2 stops22h 50m

$607

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Bulgaria from

How to get the cheapest flight ticket from Allentown to Bulgaria

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Bulgaria?

United Airlines, Lufthansa and Austrian Airlines are the top three most popular airlines that fly to Bulgaria from Allentown according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Bulgaria. Keep in mind that there are 6 different airlines that fly to Bulgaria on a routine basis, so you have a few additional options to choose from.

Cheap Allentown to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Bulgaria

Direct flights

None
There are no direct flights from Allentown to Bulgaria. There are no popular flight routes from Allentown to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Bulgaria?

    Prices for flights from Allentown-Bethlehem Airport to Bulgaria are updated daily.

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Bulgaria?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The travel and health documents required for your trip to Bulgaria can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bulgaria. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Bulgaria?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Bulgaria. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to Bulgaria with flexible booking policies on momondo?

Yes. All flights to Bulgaria from Allentown on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Allentown to Bulgaria?

Once you have performed a search for Allentown to Bulgaria flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Allentown to Bulgaria right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Allentown to Bulgaria flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo
Flights to Sofiafrom $340
Flights to Varnafrom $403
Flights to Burgasfrom $838
Flights to Plovdivfrom $1,015