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Cathay Pacific flights from Washington, D.C. Dulles Intl Airport to Bangkok Suvarnabhumi Airport (IAD - BKK)

IAD — BKK
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Washington, D.C. to Bangkok on Cathay Pacific typically fly into Bangkok Suvarnabhumi and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

Cathay Pacific flights from Dulles Intl to Suvarnabhumi in 2026

Find detailed information about Cathay Pacific flights from Dulles Intl to Suvarnabhumi. Explore the options provided by Cathay Pacific to plan your journey from Dulles Intl to Suvarnabhumi. Data last updated 1 April 2026.

One-way from

฿18,635

Return from

฿36,977

Popular in

December

Cheapest in

October

Average price (all airlines)

฿35,641
Cathay Pacific
  • Cathay Pacific
  • 20/8
  • 2 total stops
  • 27h 15m total
  • Washington, D.C. to Bangkok
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Cathay Pacific
  • Cathay Pacific
  • 21/4-26/5
  • 4 total stops
  • 63h 13m total
  • Washington, D.C. to Bangkok
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Highest demand for flights from Washington, D.C. Dulles Intl to Bangkok Suvarnabhumi; 6% potential price increase.
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Best time to find cheap flights from Washington, D.C. Dulles Intl to Bangkok Suvarnabhumi; 3% potential price drop.
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Average price for all Washington, D.C. Dulles Intl to Bangkok Suvarnabhumi flights (one-way and round-trip).
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Find Cathay Pacific flight deals from Dulles Intl to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest Cathay Pacific flights from Dulles Intl to Suvarnabhumi
Explore the most affordable Cathay Pacific flight options available from Dulles Intl to Suvarnabhumi. Find the lowest fares with prices last updated on 1 April 2026.

Tue 21/406:10
IAD
-
BKK
2 stops31h 00m
Cathay Pacific
Tue 26/507:35
BKK
-
IAD
2 stops32h 13m
Cathay Pacific
Deal found 30/3฿36,977
Wed 22/417:59
IAD
-
BKK
2 stops30h 06m
Cathay Pacific
Wed 13/512:10
BKK
-
IAD
2 stops28h 30m
Cathay Pacific
Deal found 31/3฿38,084
Fri 1/506:10
IAD
-
BKK
2 stops31h 00m
Cathay Pacific
Tue 19/512:10
BKK
-
IAD
2 stops28h 30m
Cathay Pacific
Deal found 31/3฿38,606

Rainfall in Suvarnabhumi by month

Plan your trip to Suvarnabhumi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok Suvarnabhumi Airport when rainfall is around 10.0 mm.

Temperature in Suvarnabhumi by month

Plan your trip to Suvarnabhumi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

Best time to book a flight from Dulles Intl to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Dulles Intl with our price prediction graph.
Estimated return 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.

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See what others are saying about Cathay Pacific

Read reviews and see what other travellers are saying about their experiences with Cathay Pacific. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Cathay Pacific for your next flight. Reviews last updated 1 April 2026.
Cathay Pacific
7.6
Good
1,235 reviews
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Overview

Crew

8.1

Comfort

7.6

Entertainment

7.8

Boarding

7.9

Food

7.3

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