Boston

Delta Air Lines flies ICN → SIN in both directions, with a through-ticket back to Boston. Economy Basic is hand baggage only; the four fares above it add a checked bag, lounge access or a lie-flat seat.

JetBlue flies ICN → SIN in both directions, with a through-ticket back to Boston. Economy Basic is hand baggage only; the four fares above it add a checked bag, lounge access or a lie-flat seat.

United Airlines flies CDG → SIN in both directions, with a through-ticket back to Boston. Economy Basic is hand baggage only; the four fares above it add a checked bag, lounge access or a lie-flat seat.

Delta Air Lines flies SIN → ICN in both directions, with a through-ticket back to Boston. Economy Basic is hand baggage only; the four fares above it add a checked bag, lounge access or a lie-flat seat.