Title: Cheap flights from Boston to Aachen (BOS to AAH) - Expedia.com ![North Rhine-Westphalia featuring heritage architecture](https://images.trvl-media.com/place/6053489/7d1ac431-cbd6-48cc-a9f9-ff9a7a639181.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6053489/7d1ac431-cbd6-48cc-a9f9-ff9a7a639181.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Boston (BOS) to Aachen (AAH) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Logan International Airport (BOS) to Aachen (AAH-Merzbruck) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BOS,to:AAH,departure:2/19/2026TANYT&leg2=from:AAH,to:BOS,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) __Flights from Boston (BOS) to Aachen (AAH)__ | Origin airport | Logan Intl. | | ------------------- | ----------- | | Destination airport | Merzbruck | | Distance | 3542 mi | ## Boston to Aachen Flights The cheapest times to fly from Boston to Aachen On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Aachen are during the month of . You can find some of the cheapest flights from Boston to Aachen with Expedia's search tool and vast selection of airlines. The best time to book a flight from Boston to Aachen Sunday is one of the best days to book for cheap flights from Boston to Aachen: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Boston to Aachen Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Aachen in 2026\. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Aachen flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Boston to Aachen airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. ## Frequently asked questions ### How much does a flight from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck) cost? ### What is the cheapest month to fly from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck)? ### What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck)? ### How many flights per day from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck)? ### What day of the week has the most flights from BOS to AAH? ### What is the best time to fly from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck)? ### Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Aachen (AAH-Merzbruck) last-minute? ### Can I cancel or change the date of my flight from Logan Intl. 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