UIO to BOS from $420 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

Mariscal Sucre International Airport

Logan International Airport

Boston, United States

$953 USD

-56%$420 USD

Verified about 7 hours ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$547 1$601 2$847 3$740 4$562 5$740 6$749 7$755 8$528 9$556 10$736 11$632 12$688 13$636 14$528 15$528 16$686 17$568 18$528 19$740 20$528 21$458 22$547 23$685 24$554 25$683 26$702 27$737 28$577 29$664 30$774 1$893 2$778 3$774 4$596

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Thursday, September 3rd, 2026

4 round-trip options

Returning

Tue, Sep 8, 2026•5 Day Trip

$793 USD

Returning

Fri, Sep 11, 2026•8 Day Trip

$740 USD

Returning

Tue, Sep 15, 2026•12 Day Trip

$780 USD

Returning

Wed, Sep 16, 2026•13 Day Trip

$871 USD