Click Copy to redeem this coupon and grab your favorite 6-Inch Sub for just $3.99:
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If this promo code doesn’t work, feel free to check out other available Subway offers:6INCH399, SUB399, SIXINCHSUB, 6SUB, SIX399, 6ORDER399, INCHSUB399, 399SUBWAY, SUBWAY399SUB.
1304 people redeemed this deal, with the last use on Jul 31, 2026.
