Washington to Istanbul in December 2026 DCA, IAD → IST, SAW
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)
For departures in December 2026, the cheapest return found recently is $846 with British Airways, 28 Dec – 11 Jan 2027, found today. The cheapest one-way found recently is $650 with Saudia, 21 Dec, found yesterday.
Return
In December 2026, the cheapest return fare on each of 9 departure dates is usually $939 to $1,128. Across all 24 departure dates we hold on this route, it is usually $808 to $1,105. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.
Cheapest return found recently
$846
28 Dec – 11 Jan 2027 · British Airways
Washington Dulles International Airport (IAD) → Istanbul New Airport (IST)
out 1 stop, back 1 stop
found today
Cheapest we hold, of any age
$739
3 Dec – 11 Dec · Turkish Airlines
Washington Dulles International Airport (IAD) → Istanbul New Airport (IST)
out nonstop, back nonstop
found 4 days ago
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 3 Dec – 11 Dec | $739 | Turkish Airlines | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 28 Dec – 11 Jan 2027 | $846 | British Airways | out 1 stop, back 1 stop | found today | See prices for these dates |
| 25 Dec – 10 Jan 2027 | $939 | Saudia | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 10 Dec – 10 Jan 2027 | $1,002 | TAP Air Portugal | out 3 stops, back 3 stops | found 2 days ago | See prices for these dates |
| 15 Dec – 10 Jan 2027 | $1,002 | British Airways | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Every date we hold
9 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 3 Dec – 11 Dec | $739 | Turkish Airlines | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 10 Dec – 10 Jan 2027 | $1,002 | TAP Air Portugal | Washington Dulles International Airport (IAD) → Sabiha Gokcen International Airport (SAW) | out 3 stops, back 3 stops | found 2 days ago | See prices for these dates |
| 15 Dec – 10 Jan 2027 | $1,002 | British Airways | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 16 Dec – 10 Jan 2027 | $1,128 | British Airways | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 19 Dec – 10 Jan 2027 | $1,607 | Air France | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 20 Dec – 20 Jan 2027 | $1,323 | British Airways | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 25 Dec – 10 Jan 2027 | $939 | Saudia | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 26 Dec – 2 Jan 2027 | $1,097 | Saudia | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 28 Dec – 11 Jan 2027 | $846 | British Airways | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found today | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $739.
One-way
In December 2026, the cheapest one-way fare on each of 5 departure dates is usually $650 to $764. Across all 16 departure dates we hold on this route, it is usually $428 to $549. Of the 2 months with enough one-way fares to compare, December 2026 is usually the most expensive.
Cheapest one-way found recently
$650
21 Dec · Saudia
Washington Dulles International Airport (IAD) → Istanbul New Airport (IST)
1 stop
found yesterday
Cheapest we hold, of any age
$481
25 Dec · Saudia
Washington Dulles International Airport (IAD) → Istanbul New Airport (IST)
1 stop
found 5 days ago
The cheapest dates in December 2026
| Dates | From | Airline | Stops | Found | |
|---|---|---|---|---|---|
| 25 Dec | $481 | Saudia | 1 stop | found 5 days ago | Open this trip |
| 21 Dec | $650 | Saudia | 1 stop | found yesterday | Open this trip |
| 16 Dec | $705 | Saudia | 1 stop | found 5 days ago | Open this trip |
| 24 Dec | $764 | Air Canada | 3 stops | found 5 days ago | Open this trip |
| 17 Dec | $913 | British Airways | 1 stop | found 4 days ago | Open this trip |
Every date we hold
5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Dec | $705 | Saudia | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
| 17 Dec | $913 | British Airways | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | 1 stop | found 4 days ago | Open this trip |
| 21 Dec | $650 | Saudia | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | 1 stop | found yesterday | Open this trip |
| 24 Dec | $764 | Air Canada | Ronald Reagan National Airport (DCA) → Sabiha Gokcen International Airport (SAW) | 3 stops | found 5 days ago | Open this trip |
| 25 Dec | $481 | Saudia | Washington Dulles International Airport (IAD) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $373.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work