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Flights operate between Washington (IAD) and Boston (BOS).

1 airline operates this route with 4 flights daily flights.

Average flight time is 1h 30m - 1h 56m.

Route distance is 414 miles (666 km).

Route Distance

414 miles (666 km)

Average Duration

1h 30m - 1h 56m

Airlines Operating This Route

United Airlines

Flight Frequency

Daily Flights

4 flights

Weekly Flights

28

Typical Departure Time Ranges

Earliest Departure

09:00

Latest Departure

22:07

Route Intelligence Dashboard

Overall Connectivity Score

70

Good
Route Diversity

1

Direct Routes

United Airlines serves 1 destination from IAD

Weekly Frequency

28

Weekly Flights

Trend: Stable

Top 1 Most Frequent Routes - Details
RouteWeekly FlightsDurationDistanceReliability
IADBoston (BOS) (BOS)
28/week
1h 30m - 1h 56m414 km
Moderate
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Flight Schedule & Filters

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United Airlines flights from Washington (IAD) to Boston (BOS)

United Airlines operates scheduled nonstop flights between Washington (IAD) and Boston (BOS). United Airlines operates 4 flights daily flights on this route.Flight Duration: 1h 30m - 1h 56m (average flight time)Distance: 414 miles (666 km) (air miles between airports)Daily Flights: 4 flights (scheduled departures per day)

IAD
Washington (IAD)

US

BOS
Boston (BOS)

US

FLIGHT TIME

1h 30m - 1h 56m

FLIGHT DISTANCE

414 miles (666 km)
Flight time
1h 35m - 1h 38m
Earliest flight
09:00
Last flight
22:07
Distance
414 miles (666 km)
Cheapest month
February
Airlines
1 (Show)
Flights per week
28

United Airlines Terminal Information & Contact

Departure Terminal - Washington (IAD)

Terminal: 1

Phone: 1-800-864-8331

Location: 1, Washington, US

Arrival Terminal - Boston (BOS)

Terminal: B

Phone: 1-800-864-8331

Location: B, Boston, US

United Airlines Flight Schedule from Washington (IAD) to Boston (BOS)

FlightAirlineDepartureArrivalAircraft

UA641

United Airlines

United Airlines

09:00

10:38:00

Boeing 737-900 Passenger

UA1709

United Airlines

United Airlines

12:51

14:29:00

Boeing 737MAX 8 Passenger

UA688

United Airlines

United Airlines

17:10

18:48:00

Boeing 737-900 Passenger

UA755

United Airlines

United Airlines

22:07

23:42:00

Boeing 737-900 Passenger

United Airlines Monthly Flight Calendar

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United Airlines Terminal Information

Departure Terminal at Washington (IAD):

• Terminal : United Airlines operates from this terminal

Terminal 1:

United Airlines Terminal Phone: 1-800-864-8331

Arrival Terminal at Boston (BOS):

• Terminal : United Airlines operates from this terminal

Terminal B:

United Airlines Terminal Phone: 1-800-864-8331

Weather & Climate at Boston (BOS)

11.4°C

Avg Temperature

115mm

Avg Rainfall

13.9km/h

Avg Wind Speed

74%

Avg Humidity

Best Months to Visit

Challenging Months

12-Month Weather Overview

Wind Speed by Month

Humidity by Month

Best Time to Book Flights to Boston (BOS)

Best Booking Window

Book 2-3 months in advance for best prices

Booking Tip

Avoid booking during extreme weather months for better deals

Peak Travel Months

2025-01
2025-07
2025-09
2025-12

Expect higher prices and more crowds during these months. Book early to secure better rates.

Recommended Months

2025-02
2025-03
2025-04

These months offer the best balance of weather, prices, and availability.

Monthly Booking Recommendations

Recommended - Best Value
Peak - Book Early
Normal

Flight Price Trends for Boston (BOS)

Cheapest Months to Fly

2023-02
2023-03
2023-04

Book flights during these months for the best deals and lowest prices.

Most Expensive Months

2023-01
2023-07
2023-09
2023-12

Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.

Price Trend Analysis

Prices are typically lower during shoulder seasons

Monthly Price Trends

Cheapest - Best Deals
Expensive - Higher Prices
Normal Prices

Best Months to Fly United Airlines to Boston (BOS)

Shoulder Season

2025-02
2025-03
2025-04
2025-05
2025-06
2025-08
2025-10
2025-11

Transition periods with moderate conditions. Good balance of price and experience.

Challenging Months

2025-01
2025-07
2025-09
2025-12

These months may have less favorable conditions. Plan accordingly and book early.

Seasonal Insight

Best travel months: Year-round

Seasonal Travel Calendar

Best - Optimal Conditions
Shoulder - Good Value
Challenging
Extreme - Use Caution

United Airlines Contact Information and Customer Services

United Airlines Address

233 S. Wacker Drive
Chicago, IL 60606, United States

Customer Service Phone

+1-800-864-8331

Official Website

united.com

Follow United Airlines on Social Media

Instagram

Twitter

YouTube

TripAdvisor

Wikipedia

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Frequently Asked Questions

How many United Airlines flights operate from Washington (IAD) to Boston (BOS)?

United Airlines operates 4 flights from Washington (IAD) to Boston (BOS).

What city does Boston (BOS) airport serve?

Boston (BOS) airport serves Boston, US.

How long is the United Airlines flight from Washington (IAD) to Boston (BOS)?

The flight duration is approximately 1h 30m - 1h 56m.

What is the distance from Washington (IAD) to Boston (BOS)?

The distance is 414 miles (666 km).

What aircraft does United Airlines use on this route?

United Airlines uses Boeing 737-900 Passenger, Boeing 737MAX 8 Passenger on this route.

What are the earliest and latest United Airlines flight departure times?

The earliest United Airlines flight departs at 09:00 and the latest departs at 22:07.

Which terminal does United Airlines use at Washington (IAD)?

United Airlines flights from Washington (IAD) depart from Terminal 1. Terminal 1 phone: 1-800-864-8331.

View all United Airlines flights to Washington (IAD) →

Popular United Airlines routes from Washington include multiple destinations.

Route data verified regularly by Triposia Travel Research Team.

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