Find Cheap Flights from Washington Dulles Intl to Sofia (IAD - SOF)

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Wed 2/21
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Good to Know

Low Season:
February
Best time to beat the crowds
4%
expected price decrease
High Season:
July
Most popular time to fly
29%
expected price increase
Average Price:
$1037
(avg. price over the last 2 weeks)
Good Deal:
$733
or less (round trip)

When to Book Flights from Washington Dulles Intl to Sofia

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $733 or less.
The cheapest flight from Washington Dulles Intl to Sofia was found 1 day before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is February.
Morning departure is around 10% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Washington Dulles Intl to Sofia Flights

How long does a flight from Washington Dulles Intl to Sofia take?
An average nonstop flight takes 12h 10m, covering a distance of 4934 miles.
Which airlines provide the cheapest flights from Washington Dulles Intl to Sofia?
In the past 3 days, the cheapest round-trip tickets were found on KLM ($603), Multiple Airlines ($603) and Austrian Airlines ($655).
Do I need a passport to fly between Washington Dulles Intl and Sofia?
Yes.
What’s the cheapest day of the week to fly Washington Dulles Intl to Sofia?
For Washington Dulles Intl to Sofia, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Sofia back to Washington Dulles Intl, the best deals are generally found on Thursday, with Saturday being the most expensive.

Book cheap flights from Washington Dulles Intl to Sofia (round-trip)

Airports
Origin
Washington
$603
only
$603
Destination
Sofia
$603
only
$603
Thu, Apr 5
IAD
SOF
15h 40m
Tue, May 8
SOF
IAD
15h 30m
Trip: 34 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1746 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
PTY
AMS
Good 6.3

KLM crews look unhappy with their work. Everything they do is a favor not duty.

AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

DMM
AMS
Okay 5.6

Tiny old cramped plane.

AMS
HUY
Excellent 8.6

The last two times we connected in Amsterdam to Humberside our luggage was delayed. This time it wasn’t. The simple things give the greatest satisfaction

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

Thu, Aug 30
IAD
SOF
12h 35m
Tue, Sep 11
SOF
IAD
15h 30m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 9
IAD
SOF
12h 40m
Wed, May 30
SOF
IAD
24h 40m
Trip: 22 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 3075 reviews
Overall
8.2
Boarding
8.2
Comfort
8.0
Crew
8.5
Entertainment
7.4
Food
7.5
ZRH
NUE
Excellent 10.0

Very friendly staff

All was well

WAW
VIE
Excellent 8.4

Crew was very friendly. In-flight food service on such a short flight with choice of a sweet or salty snack was much appreciated.

Seat backs were rock solid without use of a personal pillow.

SOF
VIE
Okay 5.6

Food is appauling!

VIE
MIA
Mediocre 2.0

Firstly . The crew were rude ! They did not even response when were calling them from the seat . The only way to talk to them is to find them at the end of the plane ( where they been chating with each other ) Secondly . The amount of snacks was limited where’s in Turkish airlines it’s unlimited and you can choose different sandwiches whereas in Austrian airilines can offer biscuits and Cookies ;( Thirdly . We are living in 21 century and most transatlantic airlines have WiFi ! Where’s Austrian did not have it!

KBP
VIE
Mediocre 2.6

Firstly . The crew were rude ! They did not even response when were calling them from the seat . The only way to talk to them is to find them at the end of the plane ( where they been chating with each other ) Secondly . The amount of snacks was limited where’s in Turkish airlines it’s unlimited and you can choose different sandwiches whereas in Austrian airilines can offer biscuits and Cookies ;( Thirdly . We are living in 21 century and most transatlantic airlines have WiFi ! Where’s Austrian did not have it!

Mon, Mar 12
IAD
SOF
14h 15m
Sun, Mar 18
SOF
IAD
30h 40m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 6075 reviews
Overall
8.0
Boarding
8.0
Comfort
7.8
Crew
8.3
Entertainment
7.5
Food
7.5
PRG
SVO
Okay 4.0

My tough plastic carry-on didnt fit into their newly applied strict rules and had to checked in. Arrived Broken into pieces:(

NJC
SVO
Excellent 10.0

New sparkling clean plane, Great service, Great food! What’s not to like?

All was great!

JFK
SVO
Excellent 10.0

everything was great

MIA
SVO
Excellent 10.0

Nothing to complain about.

TLV
SVO
Excellent 10.0

Everything went smoothly

Wed, Mar 7
IAD
SOF
26h 55m
Wed, Mar 21
SOF
IAD
16h 25m
Trip: 14 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18051 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
ORD
IST
Excellent 10.0

2nd time with Turkish Airlines; no concerns. Everything handled timely and professionally.

FCO
IST
Good 7.0

Food and entertainment

They ran out of select drinks on the plane. Boarding was a pain!!! They had the longest security checks, and it was extremely chaotic. Seating was crowded.

IST
ORD
Excellent 9.6

The flight itself was very nice quality again. Crew was very friendly, priority boarding for international business. pod seating was super comfortable.

No alcohol beverage service before take off. One of the only airlines that does this. Also flight was delayed again in Istanbul. We were delayed on our layover in, and out of Istanbul. Both times stuck on the tarmac. I see this as a common problem

LAX
IST
Mediocre 2.0

Nothing

Nothing

IST
RUH
Mediocre 2.0

Even though it’s only a 4 hours direct flight, They lost my baggage!!!

Tue, Mar 6
IAD
SOF
12h 40m
Sat, Apr 14
SOF
IAD
13h 35m
Trip: 39 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18841 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BOM
FRA
Excellent 8.3

Smooth and comfortable flight . Awesome service by the crew

DEN
MUC
Excellent 9.6

Beautiful clean aircraft . Superb crew.

FRA
BOM
Excellent 8.3

Food Seats

MUC
FCO
Mediocre 2.0

Nothing good to say

Expect to be delayed if it snows a bit in Munich. Delayed for more than 7 hours total. 3 of those on the plane in Munich. Horrible!

BOS
MUC
Okay 4.0

Worst food ever. Stewardess could not figure out where my seat was . Seemed unfamiliar with the plane.

Wed, Aug 29
IAD
SOF
15h 30m
Tue, Sep 11
SOF
IAD
15h 30m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1746 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

AMS
MAN
Good 7.0

The flight attendants could not do enough for you.

Business class was pretty empty but again I was not allowed to change my seat selection online. Pathetic check-in.

PTY
AMS
Good 6.3

KLM crews look unhappy with their work. Everything they do is a favor not duty.

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

Tue, Aug 7
IAD
SOF
15h 30m
Tue, Aug 28
SOF
IAD
15h 40m
Trip: 22 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 9
IAD
SOF
15h 30m
Tue, Aug 28
SOF
IAD
15h 40m
Trip: 20 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 30
IAD
SOF
14h 45m
Thu, Sep 13
SOF
IAD
28h 45m
Trip: 15 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18051 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
ATL
IST
Good 7.6

Standard

Seats were cramped for an international, 10 hour flight

ORD
IST
Excellent 10.0

2nd time with Turkish Airlines; no concerns. Everything handled timely and professionally.

JFK
IST
Excellent 8.3

I did like the food, very nice stuff.

I order some to help to find my gate for a another international flight,but no one came. For such long flight, definitely need to have sits with more space. Very hard to flight in such tight space

JFK
IST
Good 7.0

Total chaos during boarding..no organization

IST
BOS
Mediocre 3.3

Priority boarding was messed-up - no queue discipline was even attempted by the gate staff. The business class seats were uncomfortable and not comfortable to sleep in. The footrest was not long enough and the feet were dangling in the air. The blanket and bedding was provided almost 3 hours after take-off Worst of all was baggage handling. Our luggage was severely damaged. The handle to the suitcases was torn off. In addition the bags and the contents were wet when we received them in Boston. IT had been raining in Istanbul and it seems the bags were left out in the open. I've been trying to get Turkish to repair the torn-off handles but I'm constantly hitting a wall. I have filed a claim but the support staff sends extremely brief denials with no explanation.

Sat, Apr 21
IAD
SOF
16h 05m
Mon, May 21
SOF
IAD
15h 30m
Trip: 31 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1746 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
DMM
AMS
Okay 5.6

Tiny old cramped plane.

AMS
CPT
Good 6.3

Excellent experience with the cabin crew.

Seats on the 777 were too narrow. This 777 had a 3-4-3 seating arraignment, it would have been better with a 3-3-3, similar to a 787 configuration. With the current layout, even with an aisle seat, I was sitting in the aisle. And I am not a large person! The flight was full, so use the 787 and two daily non-stops. For a twelve hour flight, the food was only Okay, could have been better and with a better selection. Meal timing was poor.

BCN
AMS
Excellent 9.3

The food was excelent

I have to pay to pay a little more confort

PTY
AMS
Good 6.3

KLM crews look unhappy with their work. Everything they do is a favor not duty.

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

Tue, May 15
IAD
SOF
17h 30m
Sat, May 19
SOF
IAD
31h 10m
Trip: 5 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18841 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
ATH
FRA
Mediocre 2.6

Flight was fine...

When two passengers got into a brawl over who knows what, it took two hours for the police to come on board and take them off the flight. They should have been removed quickly. Missed connecting flight. Messed my day up big time.

DEN
MUC
Excellent 9.6

Beautiful clean aircraft . Superb crew.

BOS
FRA
Good 7.6

Crew

BOM
FRA
Excellent 8.3

Smooth and comfortable flight . Awesome service by the crew

FRA
BOM
Excellent 8.3

Food Seats

Mon, Mar 5
IAD
SOF
14h 15m
Sun, Mar 18
SOF
IAD
30h 40m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 6075 reviews
Overall
8.0
Boarding
8.0
Comfort
7.8
Crew
8.3
Entertainment
7.5
Food
7.5
SVO
IAD
Excellent 10.0

Great level of service.

Can't think about anything

JFK
SVO
Excellent 8.3

Very professional and friendly crew. Great flight, great pilots.

Lunch quality (second meal)

PRG
SVO
Okay 4.0

My tough plastic carry-on didnt fit into their newly applied strict rules and had to checked in. Arrived Broken into pieces:(

SVO
DEL
Mediocre 2.6

That we didn’t crash

We boarded the plane, waitied for an hour and a half needed to leave the plane and board another plane all in a very slow Unprofessional way The staff was not helpful The flight ended up landing five hours late many people lost their connection flight

MIA
SVO
Excellent 10.0

Nothing to complain about.

Sat, Aug 11
IAD
SOF
15h 30m
Tue, Aug 28
SOF
IAD
15h 40m
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 27
IAD
SOF
14h 25m
Wed, Mar 21
SOF
IAD
16h 25m
Trip: 22 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18051 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
ORD
IST
Excellent 10.0

2nd time with Turkish Airlines; no concerns. Everything handled timely and professionally.

FCO
IST
Good 7.0

Food and entertainment

They ran out of select drinks on the plane. Boarding was a pain!!! They had the longest security checks, and it was extremely chaotic. Seating was crowded.

IST
ORD
Excellent 9.6

The flight itself was very nice quality again. Crew was very friendly, priority boarding for international business. pod seating was super comfortable.

No alcohol beverage service before take off. One of the only airlines that does this. Also flight was delayed again in Istanbul. We were delayed on our layover in, and out of Istanbul. Both times stuck on the tarmac. I see this as a common problem

LAX
IST
Mediocre 2.0

Nothing

Nothing

IST
JNB
Okay 5.3

Options for vegetarians were not really good.

Mon, Feb 26
IAD
SOF
12h 10m
Mon, Mar 12
SOF
IAD
16h 35m
Trip: 14 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18841 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BOS
MUC
Okay 4.0

Worst food ever. Stewardess could not figure out where my seat was . Seemed unfamiliar with the plane.

FRA
LAX
Mediocre 2.0

Had to take a United flight to a different destination. No compensation for something I had no control over. When I am at an airport and have the opportunity to catch an earlier flight you have room on, you charge me. When this kind of thing happens - I pay with my time. Sucks

MUC
FCO
Mediocre 2.0

Nothing good to say

Expect to be delayed if it snows a bit in Munich. Delayed for more than 7 hours total. 3 of those on the plane in Munich. Horrible!

FRA
SFO
Excellent 9.0

Asked for an extra pillow - handed that straight away. Excellent food - loved every meal, both portion and quality. Boarding process was smooth too. Pilots are always great.

Would have been nice to get upgraded to premium economy since they had seats available.

SEA
FRA
Excellent 8.3

On time Boarding was convenient

Food Seats

Wed, Aug 29
IAD
SOF
15h 30m
Wed, Sep 5
SOF
IAD
15h 40m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Aug 31
IAD
SOF
15h 30m
Tue, Sep 11
SOF
IAD
15h 30m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1746 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

PTY
AMS
Good 6.3

KLM crews look unhappy with their work. Everything they do is a favor not duty.

AMS
BLL
Good 6.5

Nice seats, comfortable.

Again, no aisle seat for SkyTeam Gold member. Also, my baggage was lost. First bag arrived a day late, second after I had left Billund and it was six days before the bag with my clothes reached me. I was told I will have 100 euro credit for clothing, but in the winter and for 6 days, this was not even close to the amount I needed for clothing and necessities, to have my time here.

AMS
HUY
Excellent 8.6

The last two times we connected in Amsterdam to Humberside our luggage was delayed. This time it wasn’t. The simple things give the greatest satisfaction

DMM
AMS
Okay 5.6

Tiny old cramped plane.

Thu, Mar 29
IAD
SOF
34h 55m
Sun, Apr 8
SOF
IAD
28h 45m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18051 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
FCO
IST
Excellent 9.0

Typical short business class. Quality was still nice. Room to spread out and crew was accommodating

No priority boarding for business. And still no beverage service before take off (alcohol).

ATL
IST
Good 7.6

Standard

Seats were cramped for an international, 10 hour flight

IST
RUH
Mediocre 2.0

Even though it’s only a 4 hours direct flight, They lost my baggage!!!

IST
JNB
Okay 5.3

Options for vegetarians were not really good.

ORD
IST
Excellent 10.0

2nd time with Turkish Airlines; no concerns. Everything handled timely and professionally.

Sat, Aug 18
IAD
SOF
13h 10m
Thu, Aug 23
SOF
IAD
16h 05m
Trip: 6 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18841 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
DEN
MUC
Excellent 9.6

Beautiful clean aircraft . Superb crew.

DEN
MUC
Excellent 10.0

The service was excellent along with the flight being very comfortable.

A little more options in entertainment in the hindi language would be much better for people who do not like to watch English entertainment. Along with that free wifi would be kind of good to have for people who need to work on the flight or check out important emails.

BOM
FRA
Excellent 8.3

Smooth and comfortable flight . Awesome service by the crew

FRA
SFO
Excellent 9.0

Asked for an extra pillow - handed that straight away. Excellent food - loved every meal, both portion and quality. Boarding process was smooth too. Pilots are always great.

Would have been nice to get upgraded to premium economy since they had seats available.

SEA
FRA
Excellent 8.3

On time Boarding was convenient

Food Seats

Show more results

Washington Dulles Intl to Sofia Flight Information

Flights Arrive in Sofia
Flights Depart from Washington Dulles Intl
Flight Price $603
Distance 4934 miles
Airlines KLM, Austrian Airlines, Aeroflot, Turkish Airlines, Lufthansa
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.