Flight Halifax, Nova Scotia - Boston Bar prices from $668.76

Air Canada is the largest airline in Canada, providing scheduled and charter air transportation for passengers and cargo to over 200 destinations worldwide. The airline operates a fleet of over 400 aircraft, including narrow-body and wide-body jets, and serves both domestic and international routes. Air Canada is a member of the Star Alliance, a global airline network that provides passengers with access to over 1,000 destinations in 190 countries. The airline offers a range of services, including in-flight entertainment, Wi-Fi, and a loyalty program called Aeroplan. Air Canada is headquartered in Montreal, Quebec, and has hubs in Toronto, Vancouver, and Calgary.

Alaska Airlines is a major American airline headquartered in Seattle, Washington. It was founded in 1932 and operates a fleet of over 300 aircraft, serving more than 115 destinations across the United States, Canada, Mexico, and Costa Rica. Alaska Airlines is known for its commitment to customer service, on-time performance, and sustainability initiatives. It is a member of the Oneworld airline alliance and has codeshare agreements with several other airlines. Alaska Airlines offers a variety of travel classes, including First Class, Premium Class, and Main Cabin, as well as a loyalty program called Mileage Plan.

Allegiant Air is an American low-cost airline that operates scheduled and charter flights. It was founded in 1997 and is headquartered in Las Vegas, Nevada. The airline operates flights to over 120 destinations across the United States, including popular vacation destinations such as Las Vegas, Orlando, and Myrtle Beach. Allegiant Air operates a fleet of Airbus A319, A320, and A321 aircraft, and offers a range of services including seat selection, priority boarding, and in-flight entertainment. The airline has been recognized for its low fares and customer service, and has won several awards for its performance and reliability.

Flair Airlines is a Canadian low-cost airline that operates scheduled and charter flights to destinations across Canada, the United States, Mexico, and the Caribbean. Founded in 2005, the airline is headquartered in Edmonton, Alberta, and operates a fleet of Boeing 737 aircraft. Flair Airlines offers a range of fare options, including basic economy, economy, and premium economy, and allows passengers to add on additional services such as baggage, seat selection, and in-flight meals for an additional fee. The airline has grown rapidly in recent years, expanding its route network and increasing its fleet size to meet growing demand for affordable air travel in Canada.

Porter Airlines is a regional airline based in Toronto, Canada. It was founded in 2006 and operates flights to various destinations in Canada and the United States. The airline is known for its distinctive brand and high level of customer service, offering amenities such as complimentary snacks and beverages, lounge access, and free Wi-Fi on board. Porter Airlines operates a fleet of Bombardier Q400 turboprop aircraft, which are known for their fuel efficiency and low noise levels. The airline has won numerous awards for its service and has been recognized for its commitment to sustainability and community involvement.

Spirit Airlines is an American ultra-low-cost carrier that operates flights throughout the United States, the Caribbean, Mexico, and Central and South America. The airline was founded in 1983 and is headquartered in Miramar, Florida. Spirit Airlines is known for its low fares and no-frills approach to air travel, with passengers paying extra for amenities such as checked baggage, seat selection, and in-flight refreshments. The airline operates a fleet of Airbus aircraft and has a frequent flyer program called Free Spirit. Despite its low-cost model, Spirit Airlines has faced criticism for its customer service and fees.