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Cheap Flights from London to Dulles (LGW to IAD) from $618.00

Compare the cheapest London (LGW) to Dulles (IAD) fares found by our live flight search, then book online or over the phone with our travel experts.

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Adults
12+
1
Children
2–11
0
Infants
Under 2
0
Cabin
🏷️
Save up to 40% with unpublished phone fares
Consolidator deals on selected London → Dulles flights that do not appear in online search results. The live fares below are bookable right now — or call to check for an unpublished fare on your dates.
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One-way fares London → Dulles

showing indicative fares · loading live prices…
Turkish Airlines
Turkish Airlines CHEAPEST
LGW → IAD · Economy
lowest fare seen on this route
$1,031.63
$618.98
Select
FI Airlines
FI Airlines
LGW → IAD · Economy
lowest fare seen on this route
$1,034.33
$620.60
Select
Virgin Atlantic
Virgin Atlantic
LGW → IAD · Economy
lowest fare seen on this route
$1,103.93
$662.36
Select
Air France
Air France
LGW → IAD · Economy
lowest fare seen on this route
$1,132.33
$679.40
Select
KLM
KLM
LGW → IAD · Economy
lowest fare seen on this route
$1,132.33
$679.40
Select
Swiss
Swiss
LGW → IAD · Economy
lowest fare seen on this route
$1,697.73
$1,018.64
Select
See all flights & times → Prices per adult, one way, incl. taxes & fees. Availability changes constantly.
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Cheapest fares from London to Dulles

Lowest fare found per airline on the LGW → IAD route, with our discounted phone-deal price.

AirlineCabin Found fareOur discounted fare Fare found on
Turkish Airlines Turkish Airlines Economy $1,031.63 $618.98 Sep 13, 2026 Book
FI Airlines FI Airlines Economy $1,034.33 $620.60 Sep 13, 2026 Book
Virgin Atlantic Virgin Atlantic Economy $1,103.93 $662.36 Sep 13, 2026 Book
Air France Air France Economy $1,132.33 $679.40 Sep 13, 2026 Book
KLM KLM Economy $1,132.33 $679.40 Sep 13, 2026 Book
Swiss Swiss Economy $1,697.73 $1,018.64 Sep 13, 2026 Book
Iberia Iberia Economy $1,776.53 $1,065.92 Sep 13, 2026 Book
TP Airlines TP Airlines Economy $1,967.53 $1,180.52 Sep 13, 2026 Book
American Airlines American Airlines Economy $4,380.13 $2,628.08 Sep 13, 2026 Book
DE Airlines DE Airlines Economy $6,527.43 $3,916.46 Sep 13, 2026 Book

Discounted fares are negotiated phone deals from our vendor network and may not appear in online search results — call 1-856-513-6369 to lock one in. Fares were found on the dates shown, are per person in USD, and change with availability.

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Page updated September 20, 2026 · fare data refreshed automatically from live flight searches.