The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Baltimore/Washington International Thurgood Marshall ⇄ General Edward Lawrence Logan International BWI–BOS

Airlines flew 7,149 flights between Baltimore/Washington International Thurgood Marshall BWI in Baltimore, MD and General Edward Lawrence Logan International BOS in Boston, MA in the twelve months to July 2026, both directions together: 730,182 passengers in 937,721 seats, 78% of them filled, and 11,993,491 pounds of freight. 369 miles, about 62 minutes in the air, on 9 airlines: Southwest Airlines Co. (4,642), Republic Airline (2,105), ABX Air Inc (296), Spirit Air Lines (89) and 5 more. Planning to fly it yourself? The weather and winds along this route right now.

7,149
flights, twelve months
BWI-BOS: 3,574 · BOS-BWI: 3,575
730,182
passengers
78% of seats filled
369
miles
about 62 minutes airborne
9
airlines
12 aircraft types

Flights by month both directions

01923845757671/254/257/2510/251/264/266137/26
By month, as a table
flights
1/25625
2/25630
3/25694
4/25748
5/25767
6/25742
7/25736
8/25672
9/25613
10/25712
11/25595
12/25587
1/26490
2/26460
3/26523
4/26646
5/26636
6/26602
7/26613

Passengers by month

021,98943,97865,96687,9551/254/257/2510/251/264/2668,9007/26
By month, as a table
passengers
1/2548,936
2/2551,445
3/2571,927
4/2580,128
5/2587,955
6/2581,684
7/2580,363
8/2575,016
9/2562,023
10/2574,375
11/2558,678
12/2556,101
1/2640,530
2/2638,603
3/2652,608
4/2667,223
5/2669,866
6/2666,259
7/2668,900

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN4,642604,45579%scheduled passenger service
Republic Airline YX2,105113,89772%scheduled passenger service
ABX Air Inc ABX2960scheduled cargo service
Spirit Air Lines NK8911,16271%scheduled passenger service
Delta Air Lines Inc. DL949146%charter passenger service
United Parcel Service 5X40scheduled cargo service
Jet Story 24Q20charter passenger service
JetBlue Airways B6113496%scheduled passenger service
Envoy Air MQ14357%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1752,10676113,940
Boeing B737 Max 8001,777175243,166
Boeing 737-700/700LR/Max 71,459140165,152
Boeing 737-8001,408175196,137
Boeing 767-200/ER/EM22400
Boeing 767-300/300ER7600
Airbus Industrie A320-100/200751769,260
Airbus Industrie A320-200n121761,683
Boeing 757-2007108491
Bombardier Global 5000200
Airbus Industrie A321Neoxlr2226219
A220-300 BD-500-1A111140134

BWI → BOS this direction alone · flown January 2025 to July 2026

3,574 flights of 3,675 scheduled, 370,605 passengers in 467,409 seats, 5,354,959 pounds of freight. Southwest Airlines Co. 2,319; Republic Airline 1,053; ABX Air Inc 150; Spirit Air Lines 46; Delta Air Lines Inc. 4; Jet Story 2.

BOS → BWI this direction alone · flown January 2025 to July 2026

3,575 flights of 3,662 scheduled, 359,577 passengers in 470,312 seats, 6,638,532 pounds of freight. Southwest Airlines Co. 2,323; Republic Airline 1,052; ABX Air Inc 146; Spirit Air Lines 43; Delta Air Lines Inc. 5; United Parcel Service 4; JetBlue Airways 1; Envoy Air 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Baltimore/Washington International Thurgood Marshall BWI and General Edward Lawrence Logan International BOS; all routes.